<?xml version="1.0" encoding="utf-8"?><?xml-stylesheet href='http://feed.feedsky.com/styles/feedsky2.xsl' type='text/xsl' ?><!--这是一个由Feedsy提供技术支持的Feed，为了提高读者阅读的体验，以及满足用户美化自己Feed的需要，我们设计了多种精美的Feed模板，提供给大家选择，所有最终呈现出来的样式，皆由用户自愿选择使用，未经许可，任何团体和个人，请不要擅自修改样式或者盗用，这是对于用户选择权的尊重。--><rss xmlns:atom="http://www.w3.org/2005/Atom" xmlns:fs="http://www.feedsky.com/namespace/feed" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:taxo="http://purl.org/rss/1.0/modules/taxonomy/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:content="http://purl.org/rss/1.0/modules/content/" version="2.0"><channel><atom:link href="http://feed.feedsky.com/chedong" type="application/rss+xml" ref="self"></atom:link><fs:self_link href="http://feed.feedsky.com/chedong" type="application/rss+xml"></fs:self_link><lastBuildDate>Tue, 06 May 2008 09:29:03 GMT</lastBuildDate><title>车东[Blog^2]</title><description>良好引用，良好结构，良好导航 Well referenced and well organized, with easy navigation</description><image><url>http://www.feedsky.com/feed/chedong/sc/gif</url><title>车东[Blog^2]</title><link>http://www.chedong.com/blog/</link></image><atom:link href="http://feed.feedsky.com/chedong" type="application/rss+xml" ref="self"></atom:link><atom:link href="http://feed.feedsky.com/chedong" type="application/rss+xml" ref="self"></atom:link><atom:link href="http://feed.feedsky.com/chedong" type="application/rss+xml" ref="self"></atom:link><atom:link href="http://feed.feedsky.com/chedong" type="application/rss+xml" ref="self"></atom:link><atom:link href="http://feed.feedsky.com/chedong" type="application/rss+xml" ref="self"></atom:link><link>http://www.chedong.com/blog/</link><language>zh-cn</language><copyright>Copyright 2008</copyright><pubDate>Tue, 22 Apr 2008 13:17:27 GMT</pubDate><dc:date>2008-04-22T13:17:27Z</dc:date><dc:language>zh-cn</dc:language><dc:rights>Copyright 2008</dc:rights><item><title>Gmail：Gmail 小组孜孜不倦的追求: 五一后增加了彩色标签 群聊 表情图释等</title><link>http://www.google.com/mail/help/intl/zh-CN/about_whatsnew.html</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/gmail"></rdf:li></rdf:Bag></taxo:topics><description># 彩色标签
新增的彩色标签可以让您更好地整理电子邮件。只需点击每个标签旁边的颜色样本就能分配颜色。了解详情
# 群聊
不必开多个窗口便可与多人进行聊天，您可以邀请朋友进入群组讨</description><pubDate>Tue, 06 May 2008 17:29:03 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.google.com/mail/help/intl/zh-CN/about_whatsnew.html</guid><dc:creator>chedong</dc:creator><dc:subject>gmail</dc:subject><fs:srclink>http://www.google.com/mail/help/intl/zh-CN/about_whatsnew.html</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/71660201/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>catalina.out文件过大问题的解决方法： rotating catalina.out in tomcat 5.5 using cronolog | camelrichard.org</title><link>http://www.camelrichard.org/rotating-catalina-out-tomcat-5-5-using-cronolog</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/tomcat"></rdf:li><rdf:li resource="http://del.icio.us/tag/catalina.out"></rdf:li></rdf:Bag></taxo:topics><description>catalina.out文件可以通过cronolog进行按日期截断；</description><pubDate>Tue, 06 May 2008 14:36:18 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.camelrichard.org/rotating-catalina-out-tomcat-5-5-using-cronolog</guid><dc:creator>chedong</dc:creator><dc:subject>catalina.out tomcat</dc:subject><fs:srclink>http://www.camelrichard.org/rotating-catalina-out-tomcat-5-5-using-cronolog</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/71638583/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>Apache的泛域名解析目录映射实现：mod_vhost_alias - Apache HTTP Server</title><link>http://httpd.apache.org/docs/2.2/mod/mod_vhost_alias.html</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/apache"></rdf:li></rdf:Bag></taxo:topics><description>A more even spread of files can be achieved by hashing from the end of the name, for example: VirtualDocumentRoot /usr/local/apache/vhosts/%3+/%2.-1/%2.-2/%2.-3/%2</description><pubDate>Sun, 04 May 2008 21:21:27 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://httpd.apache.org/docs/2.2/mod/mod_vhost_alias.html</guid><dc:creator>chedong</dc:creator><dc:subject>apache</dc:subject><fs:srclink>http://httpd.apache.org/docs/2.2/mod/mod_vhost_alias.html</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/71204082/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>Navicat MySQL Admin Tool - the World's Best MySQL GUI for Windows, Linux &amp; Mac OS X - Download Now! Support Access to MySQL, Excel to MySQL, MySQL editor, MySQL administrator, MySQL frontend, MySQL manager, phpmyadmin, MySQL mangement, MySQL administratio</title><link>http://www.navicat.com/</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/mysql"></rdf:li></rdf:Bag></taxo:topics><description>MySQL客户端，支持ssh 通道；</description><pubDate>Mon, 28 Apr 2008 13:59:22 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.navicat.com/</guid><dc:creator>chedong</dc:creator><dc:subject>mysql</dc:subject><fs:srclink>http://www.navicat.com/</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/69907436/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>Varnish让内核来控制那些内容缓存在内存中/那些在磁盘中； ArchitectNotes - Varnish的架构说明</title><link>http://varnish.projects.linpro.no/wiki/ArchitectNotes</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/varnish"></rdf:li><rdf:li resource="http://del.icio.us/tag/cache"></rdf:li></rdf:Bag></taxo:topics><description>Varnish allocate some virtual memory, it tells the operating system to back this memory with space from a disk file. When it needs to send the object to a client, it simply refers to that piece of virtual memory and leaves the rest to the kernel.</description><pubDate>Tue, 22 Apr 2008 23:39:40 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://varnish.projects.linpro.no/wiki/ArchitectNotes</guid><dc:creator>chedong</dc:creator><dc:subject>cache varnish</dc:subject><fs:srclink>http://varnish.projects.linpro.no/wiki/ArchitectNotes</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/68962945/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>[AD] “我不是一个塑料袋” 博客大巴环保袋设计大赛 一等奖为MacBook Air + 5000￥</title><link>http://www.chedong.com/blog/archives/001428.html</link><description>&lt;p&gt;“我不是塑料袋”是一个很有趣的设计创意： &lt;a href=&quot;http://www.britishcouncil.org/ZH/china-arts-ukarts-fashionanddesign-articles-imnotaplasticbag.htm&quot;&gt;I'm not a plastic bag&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;此次&lt;a href=&quot;http://zhuanti.blogbus.com/bag/&quot;&gt;我不是塑料袋：环保袋设计大赛活动&lt;/a&gt;的奖品为：&lt;br /&gt;
    评委会奖(1名)：MacBook Air + 5000元现金&lt;br /&gt;
&lt;img src=&quot;http://zhuanti.blogbus.com/bag/images/a1.jpg&quot; /&gt; ( 歌手&lt;a href=&quot;http://www.douban.com/subject/2336423/&quot;&gt;Yael Naim&lt;/a&gt;的那首&lt;a href=&quot;http://julices.blogbus.com/logs/19459224.html&quot;&gt;《New Soul》&lt;/a&gt;你每天在电梯中都会听到多次吧？ )&lt;br /&gt;
    独树一帜奖(2名)：价值5000元以上的尼康D60单反相机1台 + 5000元现金&lt;br /&gt;
    不拘一格奖(2名)：价值2000元以上的多普达S1手机1台 + 5000元现金&lt;/p&gt;

&lt;p&gt;* 奖品涉及到的个人所得税由获奖人自理&lt;br /&gt;
* 所有参加投票的网友均有机会抽取100名参与奖： BlogBus明信片一套*50套 触动传媒提供小礼品*50个&lt;/p&gt;</description><category domain="http://www.sixapart.com/ns/types#category">个人爱好|Hobbies</category><pubDate>Tue, 22 Apr 2008 21:17:27 +0800</pubDate><guid isPermaLink="false">http://www.chedong.com/blog/archives/001428.html</guid><fs:srclink>http://www.chedong.com/blog/archives/001428.html</fs:srclink><fs:srcfeed>http://www.chedong.com/blog/index.xml</fs:srcfeed><fs:itemid>feedsky/chedong/~1215724/68617977/1230875</fs:itemid></item><item><title>Venu Anuganti Blog » Notes from Scaling MySQL - Up or Out (比较 Facebook, WikiPedia, FlickR, Fotolog Youtube)</title><link>http://venublog.com/2008/04/16/notes-from-scaling-mysql-up-or-out/</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/mysql"></rdf:li><rdf:li resource="http://del.icio.us/tag/architecture"></rdf:li></rdf:Bag></taxo:topics><description>Facebook, WikiPedia, FlickR, Fotolog Youtube等公司的数据库，web和缓存服务器的分布；</description><pubDate>Tue, 22 Apr 2008 11:45:38 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://venublog.com/2008/04/16/notes-from-scaling-mysql-up-or-out/</guid><dc:creator>chedong</dc:creator><dc:subject>architecture mysql</dc:subject><fs:srclink>http://venublog.com/2008/04/16/notes-from-scaling-mysql-up-or-out/</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/68962946/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>E.W.Dijkstra Archive: The Humble Programmer (EWD 340)</title><link>http://www.cs.utexas.edu/~EWD/transcriptions/EWD03xx/EWD340.html</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/programming"></rdf:li></rdf:Bag></taxo:topics><description>Edsger Wybe Dijkstra 1972 年 。 第 七位图 灵 奖 (1972年 ) 获奖演说： 《谦逊的程序员》</description><pubDate>Sun, 20 Apr 2008 20:10:40 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.cs.utexas.edu/~EWD/transcriptions/EWD03xx/EWD340.html</guid><dc:creator>chedong</dc:creator><dc:subject>programming</dc:subject><fs:srclink>http://www.cs.utexas.edu/~EWD/transcriptions/EWD03xx/EWD340.html</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592356/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>PHP创始人之一Andi Gutmans: Java已经输掉Web之战.  Andi on Web &amp; IT: Java is losing the battle for the modern Web. Can the JVM save the vendors?</title><link>http://andigutmans.blogspot.com/2008/03/java-is-losing-battle-for-modern-web.html</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/php"></rdf:li><rdf:li resource="http://del.icio.us/tag/java"></rdf:li><rdf:li resource="http://del.icio.us/tag/dev"></rdf:li></rdf:Bag></taxo:topics><description>As community driven projects these languages do not have a specification nor is their development hindered by corporate bureaucracy. On the contrary, these languages are being developed by their users who have only one end goal – get the job done, quick</description><pubDate>Wed, 16 Apr 2008 17:16:55 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://andigutmans.blogspot.com/2008/03/java-is-losing-battle-for-modern-web.html</guid><dc:creator>chedong</dc:creator><dc:subject>dev java php</dc:subject><fs:srclink>http://andigutmans.blogspot.com/2008/03/java-is-losing-battle-for-modern-web.html</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592357/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>Git 中文教程 :</title><link>http://www.bitsun.com/documents/gittutorcn.htm</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/cvs"></rdf:li><rdf:li resource="http://del.icio.us/tag/svn"></rdf:li><rdf:li resource="http://del.icio.us/tag/git"></rdf:li></rdf:Bag></taxo:topics><description>从yining那里看到了他在用git版本控制工具。作为开源自由原教旨主义项目，Git 没有对版本库的浏览和修改做任何的权限限制（所以很简单）。 它只适用于 Linux / Unix 平台，没有 Windows 版本，目</description><pubDate>Mon, 14 Apr 2008 14:38:44 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.bitsun.com/documents/gittutorcn.htm</guid><dc:creator>chedong</dc:creator><dc:subject>cvs git svn</dc:subject><fs:srclink>http://www.bitsun.com/documents/gittutorcn.htm</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592358/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>95%的中国网站需要重写CSS</title><link>http://jorux.com/archives/95-websites-of-china-need-to-rewrite-css/</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/css"></rdf:li><rdf:li resource="http://del.icio.us/tag/font"></rdf:li></rdf:Bag></taxo:topics><description>1. IE无法调整那些使用px作为单位的字体大小； 2. 国外的大部分网站能够调整的原因在于其使用了em作为字体单位；3. Firefox能够调整px和em，但是96%以上的中国网民使用IE浏览器(或内核)。这意味</description><pubDate>Mon, 14 Apr 2008 14:20:31 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://jorux.com/archives/95-websites-of-china-need-to-rewrite-css/</guid><dc:creator>chedong</dc:creator><dc:subject>css font</dc:subject><fs:srclink>http://jorux.com/archives/95-websites-of-china-need-to-rewrite-css/</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592359/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>启用MEMCACHE_COMPRESSED压缩，“扩容”MemCached</title><link>http://www.chedong.com/blog/archives/001431.html</link><description>&lt;p&gt;尝试：&lt;br /&gt;
启用了PHP &lt;a href=&quot;http://cn.php.net/memcache_set&quot;&gt;memcache_set()&lt;/a&gt;函数中的 MEMCACHE_COMPRESSED压缩选项，而&lt;a href=&quot;http://cn.php.net/memcache_get&quot;&gt;memcache_get()&lt;/a&gt;可以在后续读取过程中自动对压缩的缓存对象进行解压缩。&lt;/p&gt;

&lt;p&gt;效果：&lt;br /&gt;
测试了一下，对于&lt;a href=&quot;http://hengge.blogbus.com/logs/1473571.html&quot;&gt;博客大巴目前的应用&lt;/a&gt;来说，启用压缩后，相同的容量（2G）存储的对象数量增加了约一倍，缓存命中率从50%左右，提高到了60%左右。进一步提高命中率硬件投入还是必须的，又增加了2倍的内存后终于做到了缓存命中率提高到90%；&lt;/p&gt;

&lt;p&gt;前提0： 内存缓存有用，且命中率值得提升；&lt;br /&gt;
从60%提高到90%，还是从90%提高到95%，要看hit后的性能能够提升是否值得；&lt;/p&gt;

&lt;p&gt;前提1：MemCached已经用满&lt;br /&gt;
先用&lt;a href=&quot;http://code.sixapart.com/svn/memcached/trunk/server/scripts/memcached-tool&quot;&gt;memcached-tool&lt;/a&gt;查看一下memcached的容量统计，看memcached是不是已经用满了。如果充分运行时MemCached的空间尚未用满，启用一下压缩是没有意义的； 而且：发现没有用满的MemCached，最好减少相应MemCached的容量，空余出更多内存给其他服务做缓存；&lt;/p&gt;

&lt;p&gt;前提2： 压缩率&lt;br /&gt;
缓存的数据的确有大于几百字节的，如果都是小于100字节的键值对，压缩可能反而带来膨胀。由于缓存对象的大小在Memcached中都是按照固定大小分块存储的，最小也要88 B。所以对于过小数据带来的压缩膨胀并不是太大的问题；&lt;/p&gt;

&lt;p&gt;前台应用的CPU损耗：&lt;br /&gt;
对数据的额外压缩CPU损耗远远低于缓存命中率提升减少后台数据库访问带来的性能提升，和&lt;a href=&quot;http://www.chedong.com/tech/compress.html&quot;&gt;http的gzip/deflate压缩&lt;/a&gt;类似，压缩后数据一般为原数据大小的30%左右，节省了70%的传输性能消耗所得会大于文件压缩带来的性能损耗；&lt;/p&gt;</description><category domain="http://www.sixapart.com/ns/types#category">缓存|Cache</category><pubDate>Sun, 13 Apr 2008 21:55:29 +0800</pubDate><guid isPermaLink="false">http://www.chedong.com/blog/archives/001431.html</guid><fs:srclink>http://www.chedong.com/blog/archives/001431.html</fs:srclink><fs:srcfeed>http://www.chedong.com/blog/index.xml</fs:srcfeed><fs:itemid>feedsky/chedong/~1215724/68617978/1230875</fs:itemid></item><item><title>利用Header机制隐掉Vary，提高mod_cache缓存的命中率</title><link>http://www.chedong.com/blog/archives/001429.html</link><description>&lt;p&gt;HTTP 1.1的规范建议所有的请求输出都包含Vary Header，目的是针对对前端缓存服务器，增加针对Vary制定的各种Header类型进行不同的缓存处理，在浏览器规格复杂的情况下，不利于缓存的命中，所以要在被缓存的服务器上设置： &lt;br /&gt;
&lt;blockquote&gt;    Header unset Vary&lt;/blockquote&gt;&lt;/p&gt;

&lt;p&gt;问题是这样被发现的：最近使用&lt;a href=&quot;http://httpd.apache.org/docs/2.2/mod/mod_mem_cache.html&quot;&gt;Apache 2.2的内存缓存mod_mem_cache机制&lt;/a&gt;进行后台静态文件加速。但是总是发现几乎是只代理而不缓存，而内存缓存模式又没有统计工具查看缓存内容和命中率。转为用&lt;a href=&quot;http://httpd.apache.org/docs/2.2/mod/mod_disk_cache.html&quot;&gt;mod_disk_cache&lt;/a&gt;后，前端缓存目录空间增加非常快，以至于经常需要删除文件，而删除文件的I/O损失超过了直接访问后台访问的加速所得。后台明明只有几M模板图片和CSS文件，为什么缓存空间上G而且命中率那么低呢？查看了一下缓存目录下的文件，Apache的前端磁盘缓存就会根据浏览器除了针对内容的.data文件和.header文件外还有一个.vary目录，而这个vary目录下又会按照顶级的cache规则再mapping出2级目录来，目录节点个数过多造成磁盘空间的浪费：&lt;br /&gt;
&lt;blockquote&gt;a/b/Jqyw8OvBIlgaef7Zb8lQ.data&lt;br /&gt;
a/b/Jqyw8OvBIlgaef7Zb8lQ.header&lt;br /&gt;
a/b/Jqyw8OvBIlgaef7Zb8lQ.header.vary/a/b&lt;br /&gt;
&lt;/blockquote&gt;&lt;br /&gt;
当遇到和原有Vary不同的Header时，会在 header.vary目录下生成更多的缓存；从Apache的讨论组上看原因就是&lt;a href=&quot;http://archive.netbsd.se/?ml=apache-httpd-dev&amp;a=2007-09&amp;t=5183550&quot;&gt;IE的AcceptEncoding请求头信息里增加了一个空格&lt;/a&gt;；&lt;br /&gt;
&lt;blockquote&gt;IE    : Accept-Encoding: gzip, deflate&lt;br /&gt;
Firefox: Accept-Encoding: gzip,deflate&lt;/blockquote&gt;&lt;br /&gt;
于是按照Fernando的方法，将后台的Vary Header禁掉了。缓存空间立刻停止了增长（还是个别有header.vary目录出现）。&lt;/p&gt;

&lt;p&gt;另外一个配置优化是不要启用后台的Expires Header；&lt;br /&gt;
&lt;blockquote&gt;        ExpiresActive  off&lt;/blockquote&gt;&lt;br /&gt;
由前端的Cache服务器设置缓存规则，基本上到后台的访问就很少了；&lt;/p&gt;

&lt;p&gt;记录一个调试缓存缓存用命令行看Header输出的方法：&lt;br /&gt;
用&lt;a href=&quot;http://www.chedong.com/phpMan.php/man/curl&quot;&gt;curl&lt;/a&gt; -I 查看HTTP头信息；&lt;br /&gt;
查看缓存后输出结果：&lt;br /&gt;
curl -I http://www.example.com/foo.bar&lt;br /&gt;
查看缓存前的服务器输出：&lt;br /&gt;
curl -I -H &quot;Host: www.example.com&quot; http://ip.address.of.example/foo.bar&lt;br /&gt;
&lt;blockquote&gt;[chedong]$ curl -I -H &quot;Host: public.&lt;a href=&quot;http://blogbus.com&quot;&gt;blogbus.com&lt;/a&gt;&quot; http://192.168.1.17/rss/xianguo.png&lt;br /&gt;
HTTP/1.1 200 OK&lt;br /&gt;
Date: Sat, 12 Apr 2008 07:09:51 GMT&lt;br /&gt;
Server: Apache&lt;br /&gt;
Last-Modified: Mon, 28 Jan 2008 03:34:55 GMT&lt;br /&gt;
Accept-Ranges: bytes&lt;br /&gt;
Content-Length: 1353&lt;br /&gt;
Content-Type: image/png&lt;/p&gt;

&lt;p&gt;[chedong]$ curl -I http://public.blogbus.com/rss/xianguo.png&lt;br /&gt;
HTTP/1.1 200 OK&lt;br /&gt;
Date: Sat, 12 Apr 2008 07:10:01 GMT&lt;br /&gt;
Server: Apache/2.2.8 (Unix)&lt;br /&gt;
Last-Modified: Mon, 28 Jan 2008 03:34:55 GMT&lt;br /&gt;
Accept-Ranges: bytes&lt;br /&gt;
Content-Length: 1353&lt;br /&gt;
Cache-Control: max-age=20736000&lt;br /&gt;
Expires: Mon, 08 Dec 2008 06:27:41 GMT&lt;br /&gt;
Node: B01-AD-01&lt;br /&gt;
&lt;strong&gt;Age: 2540&lt;/strong&gt;&lt;br /&gt;
Content-Type: image/png&lt;/blockquote&gt;&lt;/p&gt;</description><category domain="http://www.sixapart.com/ns/types#category">缓存|Cache</category><pubDate>Sat, 12 Apr 2008 09:07:23 +0800</pubDate><guid isPermaLink="false">http://www.chedong.com/blog/archives/001429.html</guid><fs:srclink>http://www.chedong.com/blog/archives/001429.html</fs:srclink><fs:srcfeed>http://www.chedong.com/blog/index.xml</fs:srcfeed><fs:itemid>feedsky/chedong/~1215724/68617979/1230875</fs:itemid></item><item><title>百度相关搜索：更多相关搜索入口 现已经彻底关闭；</title><link>http://d.baidu.com/rs.php</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/baidu"></rdf:li><rdf:li resource="http://del.icio.us/tag/seo"></rdf:li></rdf:Bag></taxo:topics><description>3月底百度撤销了底部的更多相关搜索入口。You don't have permission to access /rs.php on this server.</description><pubDate>Mon, 07 Apr 2008 20:17:20 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://d.baidu.com/rs.php</guid><dc:creator>chedong</dc:creator><dc:subject>baidu seo</dc:subject><fs:srclink>http://d.baidu.com/rs.php</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592360/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>给feed增加logo或icon Add a Logo to your Feed - Snook.ca</title><link>http://snook.ca/archives/rss/add_logo_to_feed/</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/atom"></rdf:li><rdf:li resource="http://del.icio.us/tag/rss"></rdf:li></rdf:Bag></taxo:topics><description>&amp;lt;feed&amp;gt;  ...&amp;lt;icon&amp;gt;http://example.org/favicon.ico&amp;lt;/icon&amp;gt;&amp;lt;logo&amp;gt;http://example.org/logo.jpg&amp;lt;/logo&amp;gt;...
&amp;lt;/feed&amp;gt;</description><pubDate>Mon, 07 Apr 2008 16:54:14 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://snook.ca/archives/rss/add_logo_to_feed/</guid><dc:creator>chedong</dc:creator><dc:subject>atom rss</dc:subject><fs:srclink>http://snook.ca/archives/rss/add_logo_to_feed/</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592361/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>CronoLog的补丁</title><link>http://cronolog.org/patches/</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/logging"></rdf:li></rdf:Bag></taxo:topics><description>1.7 beta可以处理2G以上日志文件； 年初cronolog</description><pubDate>Mon, 07 Apr 2008 10:27:54 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://cronolog.org/patches/</guid><dc:creator>chedong</dc:creator><dc:subject>logging</dc:subject><fs:srclink>http://cronolog.org/patches/</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592362/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>squid基于反向代理的缓存加速 : Optimising Web Delivery</title><link>http://www.squid-cache.org/</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/cache"></rdf:li></rdf:Bag></taxo:topics><description>相对于几年前的2.5版本，2.6配置简化很多，而且已经比较稳定，3.0版本是用c++重构版本，功能和性能都没有变化。预计年底发布3.1；</description><pubDate>Sat, 05 Apr 2008 22:51:47 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.squid-cache.org/</guid><dc:creator>chedong</dc:creator><dc:subject>cache</dc:subject><fs:srclink>http://www.squid-cache.org/</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592363/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>学习一下FlickR的更新通知策略</title><link atom:type="text/html">http://www.flickr.com/photos/chedong/2382349716/</link><id xmlns="http://www.w3.org/2005/Atom">tag:flickr.com,2005:/photo/2382349716</id><dc:date.Taken>2008-04-02T14:12:11-08:00</dc:date.Taken><content xmlns="http://www.w3.org/2005/Atom" type="html">&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2382349716/&quot; title=&quot;学习一下FlickR的更新通知策略&quot;&gt;&lt;img src=&quot;http://farm4.static.flickr.com/3118/2382349716_4f94671c1c_m.jpg&quot; width=&quot;240&quot; height=&quot;205&quot; alt=&quot;学习一下FlickR的更新通知策略&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;关于留言：&lt;br /&gt;
不发送（缺省），即时通知，每天通知，每周通知；&lt;br /&gt;
&lt;br /&gt;
关于朋友的更新： 全部友邻 || 仅限朋友&lt;br /&gt;
不发送（缺省），及时同时，每天通知，每周通知；&lt;/p&gt;</content><author xmlns="http://www.w3.org/2005/Atom"><name>车东@FlickR</name><uri>http://www.flickr.com/people/chedong/</uri></author><content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2382349716/&quot; title=&quot;学习一下FlickR的更新通知策略&quot;&gt;&lt;img src=&quot;http://farm4.static.flickr.com/3118/2382349716_4f94671c1c_m.jpg&quot; width=&quot;240&quot; height=&quot;205&quot; alt=&quot;学习一下FlickR的更新通知策略&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;关于留言：&lt;br /&gt;
不发送（缺省），即时通知，每天通知，每周通知；&lt;br /&gt;
&lt;br /&gt;
关于朋友的更新： 全部友邻 || 仅限朋友&lt;br /&gt;
不发送（缺省），及时同时，每天通知，每周通知；&lt;/p&gt;</content:encoded><enclosure url="http://farm4.static.flickr.com/3118/2382349716_b31a6f399f_o.png" type="image/jpeg"></enclosure><category domain="http://www.flickr.com/photos/tags/">flickr</category><category domain="http://www.flickr.com/photos/tags/">notify</category><pubDate>Wed, 02 Apr 2008 14:12:11 +0800</pubDate><guid isPermaLink="false">tag:flickr.com,2005:/photo/2382349716</guid><dc:creator>车东@FlickR</dc:creator><fs:srclink>http://www.flickr.com/photos/chedong/2382349716/</fs:srclink><fs:srcfeed>http://api.flickr.com/services/feeds/photos_public.gne?id=17672638@N00&amp;amp;amp;lang=en-us&amp;amp;format=atom</fs:srcfeed><fs:itemid>feedsky/chedong/~5904151/504824/1230875</fs:itemid><fs:burntype>photo</fs:burntype></item><item><title>Cfengine - an autonomic approach to system configuration management</title><link>http://www.cfengine.org/china.phtml</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/sysadmin"></rdf:li></rdf:Bag></taxo:topics><description>Cfengine 是一个令人恐怖的系统管理工具。它可自动对联网的计算机进行配置和维护，适用于所有基于UNIX或类UNIX的操作系统，并且它可以通过UNIX兼容的环境/库Cygwin 在较新版本的Windows操作系统中</description><pubDate>Mon, 31 Mar 2008 00:13:29 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.cfengine.org/china.phtml</guid><dc:creator>chedong</dc:creator><dc:subject>sysadmin</dc:subject><fs:srclink>http://www.cfengine.org/china.phtml</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592364/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>《Why Lucene isn't that good》一文中推荐的全文引擎： MG4J: Managing Gigabytes for Java™</title><link>http://mg4j.dsi.unimi.it/</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/lucene"></rdf:li><rdf:li resource="http://del.icio.us/tag/java"></rdf:li><rdf:li resource="http://del.icio.us/tag/opensource"></rdf:li></rdf:Bag></taxo:topics><description>MG4J. It has a very good object design, excellent performance on search (indexing is slower than Lucene), a small memory footprint, is up to 10x faster than Lucene on my span query benchmarks, and is nativelly designed for clustering.</description><pubDate>Sun, 30 Mar 2008 23:59:04 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://mg4j.dsi.unimi.it/</guid><dc:creator>chedong</dc:creator><dc:subject>java lucene opensource</dc:subject><fs:srclink>http://mg4j.dsi.unimi.it/</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592365/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>Silence is Defeat | Facebook</title><link>http://www.facebook.com/pages/Silence-is-Defeat/5874128538</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/ssh"></rdf:li></rdf:Bag></taxo:topics><description>还记得捐助1$，获得一个SSH帐号吗，今天列了一下 /home/ 一共有11000多人了</description><pubDate>Sat, 29 Mar 2008 21:20:33 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.facebook.com/pages/Silence-is-Defeat/5874128538</guid><dc:creator>chedong</dc:creator><dc:subject>ssh</dc:subject><fs:srclink>http://www.facebook.com/pages/Silence-is-Defeat/5874128538</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592366/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>HTTP请求流程</title><link atom:type="text/html">http://www.flickr.com/photos/chedong/2370944376/</link><id xmlns="http://www.w3.org/2005/Atom">tag:flickr.com,2005:/photo/2370944376</id><dc:date.Taken>2008-03-29T18:15:04-08:00</dc:date.Taken><content xmlns="http://www.w3.org/2005/Atom" type="html">&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2370944376/&quot; title=&quot;HTTP请求流程&quot;&gt;&lt;img src=&quot;http://farm3.static.flickr.com/2199/2370944376_a8d76dee3e_m.jpg&quot; width=&quot;240&quot; height=&quot;161&quot; alt=&quot;HTTP请求流程&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;来源： &lt;a href=&quot;http://stat.qwest.net/resources.html&quot;&gt;stat.qwest.net/resources.html&lt;/a&gt;&lt;br /&gt;
&lt;br /&gt;
最近在找做HTTP服务监控的系统和软件，IPTONIC的报价是每个监控页： 2500￥/ 月 （3个城市） 其实各种监控服务、软件已经非常多了： 报表生成一般都不是太大问题。&lt;br /&gt;
1 最初步的：自己写个专门记录HTTP相应时间下载速度脚本，将服务器的详细相应时间记录成日志。 然后定期同步到cacti服务器上去生成报表。 &lt;br /&gt;
2 做一个页面分析脚本，将其中的LINK全部下载，送给下载速度脚本，实现一个页面所有元素的统计；&lt;br /&gt;
3 将这套脚本送到多个城市，形成监控网络；&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
另外有： &lt;a href=&quot;http://internetsupervision.com/&quot;&gt;internetsupervision.com/&lt;/a&gt; 免费3个月的，提供了一个URL检查工具，从世界是个城市（包括北京）检查到一个URL的相应时间。&lt;/p&gt;</content><author xmlns="http://www.w3.org/2005/Atom"><name>车东@FlickR</name><uri>http://www.flickr.com/people/chedong/</uri></author><content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2370944376/&quot; title=&quot;HTTP请求流程&quot;&gt;&lt;img src=&quot;http://farm3.static.flickr.com/2199/2370944376_a8d76dee3e_m.jpg&quot; width=&quot;240&quot; height=&quot;161&quot; alt=&quot;HTTP请求流程&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;来源： &lt;a href=&quot;http://stat.qwest.net/resources.html&quot;&gt;stat.qwest.net/resources.html&lt;/a&gt;&lt;br /&gt;
&lt;br /&gt;
最近在找做HTTP服务监控的系统和软件，IPTONIC的报价是每个监控页： 2500￥/ 月 （3个城市） 其实各种监控服务、软件已经非常多了： 报表生成一般都不是太大问题。&lt;br /&gt;
1 最初步的：自己写个专门记录HTTP相应时间下载速度脚本，将服务器的详细相应时间记录成日志。 然后定期同步到cacti服务器上去生成报表。 &lt;br /&gt;
2 做一个页面分析脚本，将其中的LINK全部下载，送给下载速度脚本，实现一个页面所有元素的统计；&lt;br /&gt;
3 将这套脚本送到多个城市，形成监控网络；&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
另外有： &lt;a href=&quot;http://internetsupervision.com/&quot;&gt;internetsupervision.com/&lt;/a&gt; 免费3个月的，提供了一个URL检查工具，从世界是个城市（包括北京）检查到一个URL的相应时间。&lt;/p&gt;</content:encoded><enclosure url="http://farm3.static.flickr.com/2199/2370944376_255d0b4b38_o.gif" type="image/jpeg"></enclosure><category domain="http://www.flickr.com/photos/tags/">http</category><pubDate>Sat, 29 Mar 2008 18:15:04 +0800</pubDate><guid isPermaLink="false">tag:flickr.com,2005:/photo/2370944376</guid><dc:creator>车东@FlickR</dc:creator><fs:srclink>http://www.flickr.com/photos/chedong/2370944376/</fs:srclink><fs:srcfeed>http://api.flickr.com/services/feeds/photos_public.gne?id=17672638@N00&amp;amp;amp;lang=en-us&amp;amp;format=atom</fs:srcfeed><fs:itemid>feedsky/chedong/~5904151/504825/1230875</fs:itemid><fs:burntype>photo</fs:burntype></item><item><title>Open source performance testing tools</title><link>http://www.opensourcetesting.org/performance.php</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/testing"></rdf:li><rdf:li resource="http://del.icio.us/tag/performance"></rdf:li></rdf:Bag></taxo:topics><description>开源HTTP性能测试工具： 包含随机数据生成等工具</description><pubDate>Sat, 29 Mar 2008 17:50:06 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.opensourcetesting.org/performance.php</guid><dc:creator>chedong</dc:creator><dc:subject>performance testing</dc:subject><fs:srclink>http://www.opensourcetesting.org/performance.php</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592367/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>通过SSH执行远程服务器上的命令 Run Remote Commands with SSH</title><link>http://bashcurescancer.com/run_remote_commands_with_ssh.html</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/shell"></rdf:li><rdf:li resource="http://del.icio.us/tag/linux"></rdf:li></rdf:Bag></taxo:topics><description>样例： for i in 3 23 5 15  ; do ssh chedong@192.168.1.$i  ps auxH|grep httpd|wc -l ; done;    遍历4台服务器：列出每台服务器上的httpd线程数；也可以利用{1..250} 依次遍历</description><pubDate>Fri, 28 Mar 2008 20:47:19 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://bashcurescancer.com/run_remote_commands_with_ssh.html</guid><dc:creator>chedong</dc:creator><dc:subject>linux shell</dc:subject><fs:srclink>http://bashcurescancer.com/run_remote_commands_with_ssh.html</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592368/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>Spokeo：追踪/发现朋友们常用的网络服务</title><link atom:type="text/html">http://www.flickr.com/photos/chedong/2367966767/</link><id xmlns="http://www.w3.org/2005/Atom">tag:flickr.com,2005:/photo/2367966767</id><dc:date.Taken>2008-03-28T20:33:42-08:00</dc:date.Taken><content xmlns="http://www.w3.org/2005/Atom" type="html">&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2367966767/&quot; title=&quot;Spokeo：追踪/发现朋友们常用的网络服务&quot;&gt;&lt;img src=&quot;http://farm4.static.flickr.com/3113/2367966767_7c30d54ce3_m.jpg&quot; width=&quot;4&quot; height=&quot;240&quot; alt=&quot;Spokeo：追踪/发现朋友们常用的网络服务&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;http://www.spokeo.com&quot;&gt;www.spokeo.com&lt;/a&gt; 上导入你的MSN gTalk和雅虎邮箱联系人后，就有了这个列表。有用其他SN服务的占全部联系人的一半左右（隐去了用户名和邮箱，不过从使用的服务多少来看，就知道这个人是不是那种新服务的尝鲜者了）。而其中用MSN和FlickR的最多； 联系人少还可以，联系人多了以后spokeo非常慢；&lt;/p&gt;</content><author xmlns="http://www.w3.org/2005/Atom"><name>车东@FlickR</name><uri>http://www.flickr.com/people/chedong/</uri></author><content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2367966767/&quot; title=&quot;Spokeo：追踪/发现朋友们常用的网络服务&quot;&gt;&lt;img src=&quot;http://farm4.static.flickr.com/3113/2367966767_7c30d54ce3_m.jpg&quot; width=&quot;4&quot; height=&quot;240&quot; alt=&quot;Spokeo：追踪/发现朋友们常用的网络服务&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;http://www.spokeo.com&quot;&gt;www.spokeo.com&lt;/a&gt; 上导入你的MSN gTalk和雅虎邮箱联系人后，就有了这个列表。有用其他SN服务的占全部联系人的一半左右（隐去了用户名和邮箱，不过从使用的服务多少来看，就知道这个人是不是那种新服务的尝鲜者了）。而其中用MSN和FlickR的最多； 联系人少还可以，联系人多了以后spokeo非常慢；&lt;/p&gt;</content:encoded><enclosure url="http://farm4.static.flickr.com/3113/2367966767_7c25f677a4_o.png" type="image/jpeg"></enclosure><category domain="http://www.flickr.com/photos/tags/">sns</category><category domain="http://www.flickr.com/photos/tags/">spokeo</category><pubDate>Fri, 28 Mar 2008 20:33:42 +0800</pubDate><guid isPermaLink="false">tag:flickr.com,2005:/photo/2367966767</guid><dc:creator>车东@FlickR</dc:creator><fs:srclink>http://www.flickr.com/photos/chedong/2367966767/</fs:srclink><fs:srcfeed>http://api.flickr.com/services/feeds/photos_public.gne?id=17672638@N00&amp;amp;amp;lang=en-us&amp;amp;format=atom</fs:srcfeed><fs:itemid>feedsky/chedong/~5904151/504826/1230875</fs:itemid><fs:burntype>photo</fs:burntype></item><item><title>[博客大巴招聘] PHP程序员，工作地点在上海 欢迎应届毕业生</title><link>http://www.chedong.com/blog/archives/001426.html</link><description>&lt;p&gt;纯技术人员工种，需要撰写代码，这确实是个体力活，所以我们需要您比较年轻。但我们一样需要您有至少一年的网站开发的工作经验（学生时代自己摆弄建站亦可），曾经独立开发过某个项目（或者是主要成员）。 我们需要您有在LAMP平台上纯熟的工作经验，可以基于SVN和其他开发人员进行协同开发，能够直接投入到独立开发工作之中。 如果您曾经开发过/Hack过Blog系统，那是会得到加分的。技术能力当然很重要，但我们更看重您的学习和钻研能力。&lt;/p&gt;

&lt;p&gt;简历请寄到：&lt;a href=&quot;mailto: job@blogbus.com&quot;&gt;job@blogbus.com&lt;/a&gt;，最好附上以前项目的主要项目开发经历：使用的软件包/框架/类库等； 以及你对加入&lt;a href=&quot;http://blogbus.blogbus.com/logs/2005/09/1473749.html&quot;&gt;博客大巴十大要求&lt;/a&gt;的理解；面试时间一般是每周四下午，公司的&lt;a href=&quot;http://www.blogbus.com/about/contact.html&quot;&gt;具体地址是&lt;/a&gt;：上海市徐汇区龙华路2577号5号楼。&lt;/p&gt;

&lt;p&gt;如果你在实习：可以考虑以下这个题目（一个月内学习并完成）&lt;br /&gt;
一个每天十万级访问的RSS阅读器（每秒2处理完成个请求）；&lt;br /&gt;
用户数量1万人，每人平均有20个RSS（每个人有5-100个RSS） FEED（总计有10万个不同RSS，想办法从google blogsearch上搜集一下）； &lt;br /&gt;
更新频度：所有FEED平均每天至少2次，其中热门FEED每小时同步一次（占5%）；&lt;br /&gt;
估算一下存储量，访问速度和RSS解析（&lt;a href=&quot;http://simplepie.org/&quot;&gt;SimplePie&lt;/a&gt;）的容错问题等。 &lt;/p&gt;

&lt;p&gt;基于LAMP平台+MemCached ，目前我们的&lt;a href=&quot;http://www.chedong.com/phpMan.php/man/php&quot;&gt;PHP&lt;/a&gt;开发编辑器是： &lt;a href=&quot;http://www.activestate.com/Products/komodo_ide/komodo_edit.mhtml&quot;&gt;Komodo Edit&lt;/a&gt; 服务器端直接用&lt;a href=&quot;http://www.chedong.com/phpMan.php/man/vi&quot;&gt;vim&lt;/a&gt;编辑； &lt;br /&gt;
版本控制是&lt;a href=&quot;http://www.chedong.com/phpMan.php/man/svn&quot;&gt;Subversion/SVN&lt;/a&gt;和&lt;a href=&quot;http://tortoisesvn.tigris.org/&quot;&gt;Windows客户端 TortoiseSVN&lt;/a&gt;&lt;br /&gt;
Windows下的远程登录是&lt;a href=&quot;http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html&quot;&gt;PuTTY&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;大部分操作都是在Linux命令行下操作，所以&lt;a href=&quot;http://www.chedong.com/blog/archives/000634.html&quot;&gt;awk&lt;/a&gt; / &lt;a href=&quot;http://www.chedong.com/blog/archives/000224.html&quot;&gt;perl&lt;/a&gt;/ &lt;a href=&quot;http://www.chedong.com/blog/archives/000432.html&quot;&gt;grep&lt;/a&gt;之类的需要能够熟练到代替简单的过滤排序等&lt;a href=&quot;http://www.chedong.com/blog/archives/000830.html&quot;&gt;SQL操作&lt;/a&gt;；&lt;/p&gt;</description><category domain="http://www.sixapart.com/ns/types#category">工作招聘 |recruit</category><pubDate>Thu, 27 Mar 2008 14:32:11 +0800</pubDate><guid isPermaLink="false">http://www.chedong.com/blog/archives/001426.html</guid><fs:srclink>http://www.chedong.com/blog/archives/001426.html</fs:srclink><fs:srcfeed>http://www.chedong.com/blog/index.xml</fs:srcfeed><fs:itemid>feedsky/chedong/~1215724/68617980/1230875</fs:itemid></item><item><title>MySQL的数据存储格式：按照读写比的选择</title><link atom:type="text/html">http://www.flickr.com/photos/chedong/2362769445/</link><id xmlns="http://www.w3.org/2005/Atom">tag:flickr.com,2005:/photo/2362769445</id><dc:date.Taken>2008-03-26T15:33:06-08:00</dc:date.Taken><content xmlns="http://www.w3.org/2005/Atom" type="html">&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2362769445/&quot; title=&quot;MySQL的数据存储格式：按照读写比的选择&quot;&gt;&lt;img src=&quot;http://farm3.static.flickr.com/2081/2362769445_323e3bbe7a_m.jpg&quot; width=&quot;232&quot; height=&quot;240&quot; alt=&quot;MySQL的数据存储格式：按照读写比的选择&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;原文出处：&lt;br /&gt;
&lt;a href=&quot;http://www.softwareprojects.com/resources/programming/t-mysql-storage-engines-1470.html&quot;&gt;www.softwareprojects.com/resources/programming/t-mysql-st...&lt;/a&gt;&lt;/p&gt;</content><author xmlns="http://www.w3.org/2005/Atom"><name>车东@FlickR</name><uri>http://www.flickr.com/people/chedong/</uri></author><content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2362769445/&quot; title=&quot;MySQL的数据存储格式：按照读写比的选择&quot;&gt;&lt;img src=&quot;http://farm3.static.flickr.com/2081/2362769445_323e3bbe7a_m.jpg&quot; width=&quot;232&quot; height=&quot;240&quot; alt=&quot;MySQL的数据存储格式：按照读写比的选择&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;原文出处：&lt;br /&gt;
&lt;a href=&quot;http://www.softwareprojects.com/resources/programming/t-mysql-storage-engines-1470.html&quot;&gt;www.softwareprojects.com/resources/programming/t-mysql-st...&lt;/a&gt;&lt;/p&gt;</content:encoded><enclosure url="http://farm3.static.flickr.com/2081/2362769445_30e357445f_o.png" type="image/jpeg"></enclosure><category domain="http://www.flickr.com/photos/tags/">mysql</category><category domain="http://www.flickr.com/photos/tags/">innodb</category><category domain="http://www.flickr.com/photos/tags/">myisam</category><pubDate>Wed, 26 Mar 2008 15:33:06 +0800</pubDate><guid isPermaLink="false">tag:flickr.com,2005:/photo/2362769445</guid><dc:creator>车东@FlickR</dc:creator><fs:srclink>http://www.flickr.com/photos/chedong/2362769445/</fs:srclink><fs:srcfeed>http://api.flickr.com/services/feeds/photos_public.gne?id=17672638@N00&amp;amp;amp;lang=en-us&amp;amp;format=atom</fs:srcfeed><fs:itemid>feedsky/chedong/~5904151/504827/1230875</fs:itemid><fs:burntype>photo</fs:burntype></item><item><title>Memcached的统计工具： 内存使用量，命中率，内容导出等；</title><link>http://code.sixapart.com/svn/memcached/trunk/server/scripts/memcached-tool</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/memcached"></rdf:li></rdf:Bag></taxo:topics><description>Usage: memcached-tool &amp;lt;host[:port]&amp;gt; [mode]
       memcached-tool 10.0.0.5:11211 display  显示
       memcached-tool 10.0.0.5:11211 dump     导出
       memcached-tool 10.0.0.5:11211 stats    统计
       memcached-tool 10.0.0.5:11211 move 7 9  移动</description><pubDate>Tue, 25 Mar 2008 12:59:28 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://code.sixapart.com/svn/memcached/trunk/server/scripts/memcached-tool</guid><dc:creator>chedong</dc:creator><dc:subject>memcached</dc:subject><fs:srclink>http://code.sixapart.com/svn/memcached/trunk/server/scripts/memcached-tool</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592369/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>memcached protocol.txt</title><link>http://code.sixapart.com/svn/memcached/trunk/server/doc/protocol.txt</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/memcached"></rdf:li></rdf:Bag></taxo:topics><description>MEMCacheD的协议说明；</description><pubDate>Mon, 24 Mar 2008 17:31:24 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://code.sixapart.com/svn/memcached/trunk/server/doc/protocol.txt</guid><dc:creator>chedong</dc:creator><dc:subject>memcached</dc:subject><fs:srclink>http://code.sixapart.com/svn/memcached/trunk/server/doc/protocol.txt</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592370/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>Memcache 协议（中英对照） - Doctor's WebLog - 博乐的自留地</title><link>http://www.gaobo.info/read.php/447.htm</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/memcached"></rdf:li><rdf:li resource="http://del.icio.us/tag/cache"></rdf:li></rdf:Bag></taxo:topics><description>命令&amp;quot;stats&amp;quot; 被用于查询服务器的运行状态和其他内部数据。</description><pubDate>Mon, 24 Mar 2008 17:07:26 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.gaobo.info/read.php/447.htm</guid><dc:creator>chedong</dc:creator><dc:subject>cache memcached</dc:subject><fs:srclink>http://www.gaobo.info/read.php/447.htm</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592371/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>mod_log_config - Apache HTTP Server</title><link>http://httpd.apache.org/docs/2.2/mod/mod_log_config.html</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/apache"></rdf:li><rdf:li resource="http://del.icio.us/tag/logging"></rdf:li></rdf:Bag></taxo:topics><description>记录服务器的响应处理用时 %D The time taken to serve the request, in microseconds.</description><pubDate>Sun, 23 Mar 2008 21:29:24 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://httpd.apache.org/docs/2.2/mod/mod_log_config.html</guid><dc:creator>chedong</dc:creator><dc:subject>apache logging</dc:subject><fs:srclink>http://httpd.apache.org/docs/2.2/mod/mod_log_config.html</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592372/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>Spokeo: 自动查找你联系人在各种sns网站上的更新</title><link>http://www.spokeo.com/</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/web2.0"></rdf:li></rdf:Bag></taxo:topics><description>很方便的服务，不用自己一一添加联系人，也不用添加自己的常用服务，支持的网络服务包括FlickR, MSN，Hi5等</description><pubDate>Thu, 20 Mar 2008 21:52:38 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.spokeo.com/</guid><dc:creator>chedong</dc:creator><dc:subject>web2.0</dc:subject><fs:srclink>http://www.spokeo.com/</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592373/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>漫画一则： 简单性</title><link atom:type="text/html">http://www.flickr.com/photos/chedong/2347758594/</link><id xmlns="http://www.w3.org/2005/Atom">tag:flickr.com,2005:/photo/2347758594</id><dc:date.Taken>2008-03-20T21:32:04-08:00</dc:date.Taken><content xmlns="http://www.w3.org/2005/Atom" type="html">&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2347758594/&quot; title=&quot;漫画一则： 简单性&quot;&gt;&lt;img src=&quot;http://farm4.static.flickr.com/3162/2347758594_0f895a7a40_m.jpg&quot; width=&quot;124&quot; height=&quot;240&quot; alt=&quot;漫画一则： 简单性&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;原图出处：&lt;br /&gt;
&lt;a href=&quot;http://stuffthathappens.com/blog/2008/03/05/simplicity/&quot;&gt;stuffthathappens.com/blog/2008/03/05/simplicity/&lt;/a&gt;&lt;/p&gt;</content><author xmlns="http://www.w3.org/2005/Atom"><name>车东@FlickR</name><uri>http://www.flickr.com/people/chedong/</uri></author><content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2347758594/&quot; title=&quot;漫画一则： 简单性&quot;&gt;&lt;img src=&quot;http://farm4.static.flickr.com/3162/2347758594_0f895a7a40_m.jpg&quot; width=&quot;124&quot; height=&quot;240&quot; alt=&quot;漫画一则： 简单性&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;原图出处：&lt;br /&gt;
&lt;a href=&quot;http://stuffthathappens.com/blog/2008/03/05/simplicity/&quot;&gt;stuffthathappens.com/blog/2008/03/05/simplicity/&lt;/a&gt;&lt;/p&gt;</content:encoded><enclosure url="http://farm4.static.flickr.com/3162/2347758594_4279829794_o.png" type="image/jpeg"></enclosure><pubDate>Thu, 20 Mar 2008 21:32:04 +0800</pubDate><guid isPermaLink="false">tag:flickr.com,2005:/photo/2347758594</guid><dc:creator>车东@FlickR</dc:creator><fs:srclink>http://www.flickr.com/photos/chedong/2347758594/</fs:srclink><fs:srcfeed>http://api.flickr.com/services/feeds/photos_public.gne?id=17672638@N00&amp;amp;amp;lang=en-us&amp;amp;format=atom</fs:srcfeed><fs:itemid>feedsky/chedong/~5904151/504828/1230875</fs:itemid><fs:burntype>photo</fs:burntype></item><item><title>InfoQ: 雅虎架构师Doug Cutting谈MapReduce和Hadoop的未来</title><link>http://www.infoq.com/cn/articles/hadoop-interview;jsessionid=5A55A8F63E84C08E12E8D492A9F420F6</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/hadoop"></rdf:li></rdf:Bag></taxo:topics><description>Zawodny提供了一个分布式排序的测试样例；In the tests each node sorts the same amount of input data. So as an example of ratios, 20 nodes might sort 100 records each for a total of 2000 records while 100 nodes would sort 100 records each for</description><pubDate>Thu, 20 Mar 2008 15:59:36 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.infoq.com/cn/articles/hadoop-interview;jsessionid=5A55A8F63E84C08E12E8D492A9F420F6</guid><dc:creator>chedong</dc:creator><dc:subject>hadoop</dc:subject><fs:srclink>http://www.infoq.com/cn/articles/hadoop-interview;jsessionid=5A55A8F63E84C08E12E8D492A9F420F6</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592374/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>跳过svn目录的批量递归dos2unix 查找替换</title><link>http://snippets.dzone.com/tag/dos2unix</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/svn"></rdf:li></rdf:Bag></taxo:topics><description>find . -type f \! -path &amp;quot;*svn*&amp;quot; -exec dos2unix {} \;</description><pubDate>Thu, 20 Mar 2008 00:17:01 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://snippets.dzone.com/tag/dos2unix</guid><dc:creator>chedong</dc:creator><dc:subject>svn</dc:subject><fs:srclink>http://snippets.dzone.com/tag/dos2unix</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592375/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>QQDowload 1.7是什么？</title><link atom:type="text/html">http://www.flickr.com/photos/chedong/2341909261/</link><id xmlns="http://www.w3.org/2005/Atom">tag:flickr.com,2005:/photo/2341909261</id><dc:date.Taken>2008-03-18T13:56:15-08:00</dc:date.Taken><content xmlns="http://www.w3.org/2005/Atom" type="html">&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2341909261/&quot; title=&quot;QQDowload 1.7是什么？ &quot;&gt;&lt;img src=&quot;http://farm3.static.flickr.com/2158/2341909261_3daf356842_m.jpg&quot; width=&quot;240&quot; height=&quot;151&quot; alt=&quot;QQDowload 1.7是什么？ &quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;在日志中找到了不少QQDowload 1.7的超长User Agent&lt;/p&gt;</content><author xmlns="http://www.w3.org/2005/Atom"><name>车东@FlickR</name><uri>http://www.flickr.com/people/chedong/</uri></author><content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2341909261/&quot; title=&quot;QQDowload 1.7是什么？ &quot;&gt;&lt;img src=&quot;http://farm3.static.flickr.com/2158/2341909261_3daf356842_m.jpg&quot; width=&quot;240&quot; height=&quot;151&quot; alt=&quot;QQDowload 1.7是什么？ &quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;在日志中找到了不少QQDowload 1.7的超长User Agent&lt;/p&gt;</content:encoded><enclosure url="http://farm3.static.flickr.com/2158/2341909261_74800362bc_o.png" type="image/jpeg"></enclosure><category domain="http://www.flickr.com/photos/tags/">qqdlownload</category><pubDate>Tue, 18 Mar 2008 13:56:15 +0800</pubDate><guid isPermaLink="false">tag:flickr.com,2005:/photo/2341909261</guid><dc:creator>车东@FlickR</dc:creator><fs:srclink>http://www.flickr.com/photos/chedong/2341909261/</fs:srclink><fs:srcfeed>http://api.flickr.com/services/feeds/photos_public.gne?id=17672638@N00&amp;amp;amp;lang=en-us&amp;amp;format=atom</fs:srcfeed><fs:itemid>feedsky/chedong/~5904151/504829/1230875</fs:itemid><fs:burntype>photo</fs:burntype></item><item><title>mysqldumpslow：MySQL慢查询的统计工具  MySQL :: MySQL 5.0 Reference Manual :: 5.2.4 The Slow Query Log</title><link>http://dev.mysql.com/doc/refman/5.1/en/slow-query-log.html</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/mysql"></rdf:li><rdf:li resource="http://del.icio.us/tag/performance"></rdf:li></rdf:Bag></taxo:topics><description>可以将slowquery.log中的SQL语句按照链接次数，连接来源等进行汇总统计，使用样例： /path/to/mysql/bin/mysqldumpslow -s c -t 10 /path/to/slowquery.log</description><pubDate>Mon, 17 Mar 2008 15:05:29 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://dev.mysql.com/doc/refman/5.1/en/slow-query-log.html</guid><dc:creator>chedong</dc:creator><dc:subject>mysql performance</dc:subject><fs:srclink>http://dev.mysql.com/doc/refman/5.1/en/slow-query-log.html</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592376/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>Komodo Edit： Mozilla内核的开源的源代码编辑器，支持 PHP Perl Python等 ActiveState - Free the dragon! - Dynamic Tools for Dynamic Languages</title><link>http://www.activestate.com/Products/komodo_ide/komodo_edit.mhtml</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/php"></rdf:li><rdf:li resource="http://del.icio.us/tag/opensource"></rdf:li><rdf:li resource="http://del.icio.us/tag/editor"></rdf:li><rdf:li resource="http://del.icio.us/tag/mozilla"></rdf:li></rdf:Bag></taxo:topics><description># Komodo Edit is now free and open source! # New Find in Project feature adds strength to your search so you can quickly locate the code you're looking for. # New Replace in Files makes global code changes simple</description><pubDate>Sun, 16 Mar 2008 12:24:19 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.activestate.com/Products/komodo_ide/komodo_edit.mhtml</guid><dc:creator>chedong</dc:creator><dc:subject>editor mozilla opensource php</dc:subject><fs:srclink>http://www.activestate.com/Products/komodo_ide/komodo_edit.mhtml</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592377/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>【MacBook Air拆解7】视频揭示的键盘内部的奥秘--技术在线!</title><link>http://www.nikkeibp.com.cn/china/news/digi/digi200803110125.html</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/apple"></rdf:li><rdf:li resource="http://del.icio.us/tag/%E6%8B%86%E8%A7%A3"></rdf:li></rdf:Bag></taxo:topics><description>苹果在键盘周边部分非常重视的可以列为以下四点：1.外壳的超薄厚度 2.外壳的刚性 3.按键周围能够发光 4.按键时键盘不变形 而不重视的项目也有四点： 1.部件个数 2.组装工时 3.重量 4.键盘的更</description><pubDate>Thu, 13 Mar 2008 23:18:37 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.nikkeibp.com.cn/china/news/digi/digi200803110125.html</guid><dc:creator>chedong</dc:creator><dc:subject>apple 拆解</dc:subject><fs:srclink>http://www.nikkeibp.com.cn/china/news/digi/digi200803110125.html</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592378/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>BugFree的使用：开发过程的量化统计工具</title><link>http://www.chedong.com/blog/archives/001418.html</link><description>&lt;p&gt;上海互联网同行经常能有一些很务实交流，比如：&lt;a href=&quot;http://VeryCD.com&quot;&gt;VeryCD&lt;/a&gt;向&lt;a href=&quot;http://www.blogbus.com&quot;&gt;博客大巴&lt;/a&gt;介绍过&lt;a href=&quot;http://www.chedong.com/blog/archives/001420.html&quot;&gt;Google的免费企业邮箱&lt;/a&gt;的注册方法和&lt;a href=&quot;http://www.cdnunion.com/&quot;&gt;CDN服务商&lt;/a&gt;， 而同客齐集的交流中我向&lt;a href=&quot;http://home.wangjianshuo.com/cn/&quot;&gt;王建硕&lt;/a&gt;请教过：微软是如何量化开发人员的工作饱和度，评估开发人员的工作效率并鼓励开发者按时完成任务的？从后来通过对BugFree这套系统的使用交流中了解了一些考核机制在任务跟踪系统中影响这些因素的方法。&lt;/p&gt;

&lt;p&gt;如果说GTD是一个人的目标管理，那么任务跟踪系统就是帮助实现团队的目标管理： 而且一件事情同时被多个人跟踪，还是非常有助于减少任务的被跟“丢”几率的，一个任务的角色有任务的创建者（甲方）和任务执行者（乙方）两个角色； 而开发团队一般会有3个角色来进行任务的跟踪，项目的发起者（产品经理），项目的执行者（开发人员），项目的确认（测试人员），而一个任务按照进行中，完成确认，关闭这几个状态，也有发起时间（创建者），解决时间（执行者），完成确认时间（创建者）这几个关键时间点， 利用这几个时间因素结合创建人，创建原因等因素，通过BugFree的查询生成器可以完成很丰富的开发过程指标统计甚至完成一些初步的KPI考核指标统计；&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;开发人员的工作饱和度&lt;/strong&gt;&lt;br /&gt;
就是简单的任务量累计，按照每个需求的预算时间进行累加，比较开发人员的工作时间；&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;任务的平均关闭时间&lt;/strong&gt;&lt;br /&gt;
总工作时间 ÷ 关闭的任务数，用于评估开发人员的工作效率；&lt;br /&gt;
1 开发人员不要将手边积累过多的任务，从而让大量的任务处于等待状态；&lt;br /&gt;
2 开发人员会要求需求人员尽量将任务分解： 不要有超过2天的任务，便于及时的确认进展；&lt;br /&gt;
3 开发人员完成任务后主动告知需求人员，尽快确认完成并关闭任务；&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;项目响应速度&lt;/strong&gt;&lt;br /&gt;
项目无更新时间不得超过一定时间（比如： 24小时） ，就是统计：项目状态不等于关闭， 最后更新时间相比现在大于24小时的任务，每天统计：被发现就要发出警告相应项目的执行者； 即使项目没有完成，也要通过编辑项目向项目的发起者进行反馈，避免任务被长期无响应状态；&lt;/p&gt;

&lt;p&gt;为此： 项目的开发者还需要遵循以下规则；&lt;br /&gt;
1 跟踪系统本身只是用于备忘和时间的统计，任务完成还是需要同事间直接（最好是面对面的）交流；&lt;br /&gt;
2 项目的执行方不能关闭任务，只能由创建者关闭；&lt;br /&gt;
3 执行者另外需要其他开发人员帮助的时候，需要开启新的任务作为咨询；&lt;br /&gt;
4 任务类型只计算新增需求，旧需求的错误修正，不计算为工作时间；&lt;/p&gt;

&lt;p&gt;设计以上的规则的目的是：&lt;br /&gt;
开发者：作为任务的执行者在任务启动后应及时的解决并要求创建者关闭任务，开发者会尽可能多和任务的创建者沟通，尽可能在项目进入任务跟踪前将项目的需求细化并在完成后及时提交测试并关闭，从而达到满足工作工作饱和度的同时，减少单项目完成时间指标；&lt;br /&gt;
需求人员：细化需求合理估算工时避免返工，因为项目的执行者是不用对项目需求的合理性负责的，按时开发完毕后因为需求设计错误为开发者计入工作时间，让需求的提出者（产品经理）成为项目风险的承担者，从而避免产品经理即无责任也无权利的状态；&lt;/p&gt;

&lt;p&gt;此外： 什么指标可以体现开发者除了完成任务本身外还在不断找新方法提高效率呢？&lt;/p&gt;</description><category domain="http://www.sixapart.com/ns/types#category">技术笔记|Tech Notes</category><pubDate>Thu, 13 Mar 2008 22:10:03 +0800</pubDate><guid isPermaLink="false">http://www.chedong.com/blog/archives/001418.html</guid><fs:srclink>http://www.chedong.com/blog/archives/001418.html</fs:srclink><fs:srcfeed>http://www.chedong.com/blog/index.xml</fs:srcfeed><fs:itemid>feedsky/chedong/~1215724/68617981/1230875</fs:itemid></item><item><title>微软的在线服务：文件存储和共享Store and share documents online with Office Live Workspace</title><link>http://workspace.officelive.com/</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/microsoft"></rdf:li></rdf:Bag></taxo:topics><description>目前只有英文界面： 包括日历，文档共享和存储等；</description><pubDate>Thu, 13 Mar 2008 18:12:22 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://workspace.officelive.com/</guid><dc:creator>chedong</dc:creator><dc:subject>microsoft</dc:subject><fs:srclink>http://workspace.officelive.com/</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592379/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>HTTP 包分析工具集锦 HTTP Packet Capturing to debug Apache</title><link>http://www.askapache.com/tools/sniff-http-to-debug-apache-htaccess-and-httpdconf.html</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/httpd"></rdf:li><rdf:li resource="http://del.icio.us/tag/header"></rdf:li></rdf:Bag></taxo:topics><description>常用的命令行：    wget -S --spider URL ;  lynx -head -dump URL;  curl -I URL ;  siege -g URL</description><pubDate>Mon, 10 Mar 2008 17:59:14 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.askapache.com/tools/sniff-http-to-debug-apache-htaccess-and-httpdconf.html</guid><dc:creator>chedong</dc:creator><dc:subject>header httpd</dc:subject><fs:srclink>http://www.askapache.com/tools/sniff-http-to-debug-apache-htaccess-and-httpdconf.html</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592380/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>Google“博客搜索”的blogsearch ping API验证：http://blogsearch.google.com/changes.xml</title><link>http://www.google.com/help/blogsearch/pinging_API.html</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/api"></rdf:li><rdf:li resource="http://del.icio.us/tag/rss"></rdf:li><rdf:li resource="http://del.icio.us/tag/search"></rdf:li></rdf:Bag></taxo:topics><description>ping到google的blogsearch api后用http://blogsearch.google.com/changes.xml可以验证ping是否成功，通过changes.xml中的数据统计可以对比出各个bsp的文章发布量：bokee有几十篇，qq.com 近8k，以及大量的spam ping。</description><pubDate>Fri, 07 Mar 2008 11:43:52 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.google.com/help/blogsearch/pinging_API.html</guid><dc:creator>chedong</dc:creator><dc:subject>api rss search</dc:subject><fs:srclink>http://www.google.com/help/blogsearch/pinging_API.html</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592381/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>被GTalk好友的GReader推荐淹没……</title><link atom:type="text/html">http://www.flickr.com/photos/chedong/2314705326/</link><id xmlns="http://www.w3.org/2005/Atom">tag:flickr.com,2005:/photo/2314705326</id><dc:date.Taken>2008-03-06T22:08:01-08:00</dc:date.Taken><content xmlns="http://www.w3.org/2005/Atom" type="html">&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2314705326/&quot; title=&quot;被GTalk好友的GReader推荐淹没……&quot;&gt;&lt;img src=&quot;http://farm3.static.flickr.com/2093/2314705326_d6aa5a697a_m.jpg&quot; width=&quot;215&quot; height=&quot;115&quot; alt=&quot;被GTalk好友的GReader推荐淹没……&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;去年12月份GReader推出了GTalk好友的GReader推荐功能：&lt;br /&gt;
&lt;a href=&quot;http://googlereader.blogspot.com/2007/12/reader-and-talk-are-friends.html&quot;&gt;googlereader.blogspot.com/2007/12/reader-and-talk-are-fri...&lt;/a&gt;&lt;br /&gt;
&lt;br /&gt;
今天好像在在中文版中也混杂了，只是左边的工具栏里没有单独的入口列出；&lt;/p&gt;</content><author xmlns="http://www.w3.org/2005/Atom"><name>车东@FlickR</name><uri>http://www.flickr.com/people/chedong/</uri></author><content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2314705326/&quot; title=&quot;被GTalk好友的GReader推荐淹没……&quot;&gt;&lt;img src=&quot;http://farm3.static.flickr.com/2093/2314705326_d6aa5a697a_m.jpg&quot; width=&quot;215&quot; height=&quot;115&quot; alt=&quot;被GTalk好友的GReader推荐淹没……&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;去年12月份GReader推出了GTalk好友的GReader推荐功能：&lt;br /&gt;
&lt;a href=&quot;http://googlereader.blogspot.com/2007/12/reader-and-talk-are-friends.html&quot;&gt;googlereader.blogspot.com/2007/12/reader-and-talk-are-fri...&lt;/a&gt;&lt;br /&gt;
&lt;br /&gt;
今天好像在在中文版中也混杂了，只是左边的工具栏里没有单独的入口列出；&lt;/p&gt;</content:encoded><enclosure url="http://farm3.static.flickr.com/2093/2314705326_a9151944e2_o.png" type="image/jpeg"></enclosure><pubDate>Thu, 06 Mar 2008 22:08:01 +0800</pubDate><guid isPermaLink="false">tag:flickr.com,2005:/photo/2314705326</guid><dc:creator>车东@FlickR</dc:creator><fs:srclink>http://www.flickr.com/photos/chedong/2314705326/</fs:srclink><fs:srcfeed>http://api.flickr.com/services/feeds/photos_public.gne?id=17672638@N00&amp;amp;amp;lang=en-us&amp;amp;format=atom</fs:srcfeed><fs:itemid>feedsky/chedong/~5904151/504830/1230875</fs:itemid><fs:burntype>photo</fs:burntype></item><item><title>查看HTTP请求的HEADER信息的免费工具（IE浏览器） Blunck Software:  ieHTTPHeaders</title><link>http://www.blunck.info/iehttpheaders/iehttpheaders.html</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/ie"></rdf:li><rdf:li resource="http://del.icio.us/tag/header"></rdf:li><rdf:li resource="http://del.icio.us/tag/cookie"></rdf:li></rdf:Bag></taxo:topics><description>FireFox有LiveHTTPHeader插件，IE6/IE7浏览器的HEADER查看可以试试免费的ieHTTPHeaders</description><pubDate>Wed, 05 Mar 2008 17:58:45 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.blunck.info/iehttpheaders/iehttpheaders.html</guid><dc:creator>chedong</dc:creator><dc:subject>cookie header ie</dc:subject><fs:srclink>http://www.blunck.info/iehttpheaders/iehttpheaders.html</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592382/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>测试</title><link>http://www.chedong.com/blog/archives/001422.html</link><description>&lt;p&gt;带有图片上传 &lt;/p&gt;  &lt;p&gt;&lt;a href=&quot;http://www.blogbus.com&quot;&gt;&lt;img style=&quot;border-right: 0px; border-top: 0px; border-left: 0px; border-bottom: 0px&quot; height=&quot;170&quot; alt=&quot;2008-01-02_235517&quot; src=&quot;http://www.chedong.com/blog/WindowsLiveWriter/3350c5e6fc53_13741/2008-01-02_235517_3.png&quot; width=&quot;244&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;</description><pubDate>Mon, 03 Mar 2008 22:08:16 +0800</pubDate><guid isPermaLink="false">http://www.chedong.com/blog/archives/001422.html</guid><fs:srclink>http://www.chedong.com/blog/archives/001422.html</fs:srclink><fs:srcfeed>http://www.chedong.com/blog/index.xml</fs:srcfeed><fs:itemid>feedsky/chedong/~1215724/55295770/1230875</fs:itemid></item><item><title>RSD的定义 RFC: Really Simple Discoverability 1.0</title><link>http://archipelago.phrasewise.com/display?page=oldsite/1330.html</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/api"></rdf:li><rdf:li resource="http://del.icio.us/tag/blog"></rdf:li></rdf:Bag></taxo:topics><description>RSD在blog的header中用于声明API的地址和协议，常用的协议有WordPress MetaWeblog  MovableType Blogger和atom等；</description><pubDate>Mon, 03 Mar 2008 15:33:44 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://archipelago.phrasewise.com/display?page=oldsite/1330.html</guid><dc:creator>chedong</dc:creator><dc:subject>api blog</dc:subject><fs:srclink>http://archipelago.phrasewise.com/display?page=oldsite/1330.html</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592383/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>FriendFeed 订户 - People Subscribed to Me</title><link atom:type="text/html">http://www.flickr.com/photos/chedong/2301330505/</link><id xmlns="http://www.w3.org/2005/Atom">tag:flickr.com,2005:/photo/2301330505</id><dc:date.Taken>2008-03-01T19:54:12-08:00</dc:date.Taken><content xmlns="http://www.w3.org/2005/Atom" type="html">&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2301330505/&quot; title=&quot;FriendFeed 订户 - People Subscribed to Me&quot;&gt;&lt;img src=&quot;http://farm3.static.flickr.com/2183/2301330505_57a8e12276_m.jpg&quot; width=&quot;83&quot; height=&quot;240&quot; alt=&quot;FriendFeed 订户 - People Subscribed to Me&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;从内容统计上看，大致分布如下：一个很好的Geek应用分布统计&lt;br /&gt;
1/3是TWitter &lt;br /&gt;
1/5是del.icio.us收藏 &lt;br /&gt;
1/5是blog发布 &lt;br /&gt;
1/6是GReader订阅分享&lt;/p&gt;</content><author xmlns="http://www.w3.org/2005/Atom"><name>车东@FlickR</name><uri>http://www.flickr.com/people/chedong/</uri></author><content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2301330505/&quot; title=&quot;FriendFeed 订户 - People Subscribed to Me&quot;&gt;&lt;img src=&quot;http://farm3.static.flickr.com/2183/2301330505_57a8e12276_m.jpg&quot; width=&quot;83&quot; height=&quot;240&quot; alt=&quot;FriendFeed 订户 - People Subscribed to Me&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;从内容统计上看，大致分布如下：一个很好的Geek应用分布统计&lt;br /&gt;
1/3是TWitter &lt;br /&gt;
1/5是del.icio.us收藏 &lt;br /&gt;
1/5是blog发布 &lt;br /&gt;
1/6是GReader订阅分享&lt;/p&gt;</content:encoded><enclosure url="http://farm3.static.flickr.com/2183/2301330505_2620459bb0_o.png" type="image/jpeg"></enclosure><pubDate>Sat, 01 Mar 2008 19:54:12 +0800</pubDate><guid isPermaLink="false">tag:flickr.com,2005:/photo/2301330505</guid><dc:creator>车东@FlickR</dc:creator><fs:srclink>http://www.flickr.com/photos/chedong/2301330505/</fs:srclink><fs:srcfeed>http://api.flickr.com/services/feeds/photos_public.gne?id=17672638@N00&amp;amp;amp;lang=en-us&amp;amp;format=atom</fs:srcfeed><fs:itemid>feedsky/chedong/~5904151/504831/1230875</fs:itemid><fs:burntype>photo</fs:burntype></item><item><title>时间服务器集群 pool.ntp.org: the internet cluster of ntp servers</title><link>http://www.pool.ntp.org/</link><taxo:topics><rdf:Bag><rdf:li resource="http://del.icio.us/tag/ntpd"></rdf:li><rdf:li resource="http://del.icio.us/tag/timeserver"></rdf:li><rdf:li resource="http://del.icio.us/tag/cluster"></rdf:li></rdf:Bag></taxo:topics><description>推荐使用 server 0.asia.pool.ntp.org
	   server 1.asia.pool.ntp.org
	   server 2.asia.pool.ntp.org
	   server 3.asia.pool.ntp.org 作为时间服务器（中国地区仅有1台有效）</description><pubDate>Sat, 01 Mar 2008 16:36:53 +0800</pubDate><author>chedong</author><guid isPermaLink="false">http://www.pool.ntp.org/</guid><dc:creator>chedong</dc:creator><dc:subject>cluster ntpd timeserver</dc:subject><fs:srclink>http://www.pool.ntp.org/</fs:srclink><fs:srcfeed>http://del.icio.us/rss/chedong</fs:srcfeed><fs:itemid>feedsky/chedong/~1221273/67592384/1230875</fs:itemid><fs:burntype>mark</fs:burntype></item><item><title>FriendFeed的联系人导入和个人分享导入</title><link atom:type="text/html">http://www.flickr.com/photos/chedong/2294609171/</link><id xmlns="http://www.w3.org/2005/Atom">tag:flickr.com,2005:/photo/2294609171</id><dc:date.Taken>2008-02-27T10:53:02-08:00</dc:date.Taken><content xmlns="http://www.w3.org/2005/Atom" type="html">&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2294609171/&quot; title=&quot;FriendFeed的联系人导入和个人分享导入&quot;&gt;&lt;img src=&quot;http://farm4.static.flickr.com/3127/2294609171_d8dc80a06f_m.jpg&quot; width=&quot;240&quot; height=&quot;231&quot; alt=&quot;FriendFeed的联系人导入和个人分享导入&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;导入流程很顺畅：&lt;br /&gt;
1 自己的发布源导入：不需要认证（证明自己是相应feed的主人）；&lt;br /&gt;
2 朋友圈导入： 2 GMail联系人 Yahoo!联系人，MSN联系人；&lt;/p&gt;</content><author xmlns="http://www.w3.org/2005/Atom"><name>车东@FlickR</name><uri>http://www.flickr.com/people/chedong/</uri></author><content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/people/chedong/&quot;&gt;车东@FlickR&lt;/a&gt; posted a photo:&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.flickr.com/photos/chedong/2294609171/&quot; title=&quot;FriendFeed的联系人导入和个人分享导入&quot;&gt;&lt;img src=&quot;http://farm4.static.flickr.com/3127/2294609171_d8dc80a06f_m.jpg&quot; width=&quot;240&quot; height=&quot;231&quot; alt=&quot;FriendFeed的联系人导入和个人分享导入&quot; /&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;导入流程很顺畅：&lt;br /&gt;
1 自己的发布源导入：不需要认证（证明自己是相应feed的主人）；&lt;br /&gt;
2 朋友圈导入： 2 GMail联系人 Yahoo!联系人，MSN联系人；&lt;/p&gt;</content:encoded><enclosure url="http://farm4.static.flickr.com/3127/2294609171_6cc633cedf_o.png" type="image/jpeg"></enclosure><category domain="http://www.flickr.com/photos/tags/">sns</category><category domain="http://www.flickr.com/photos/tags/">feed</category><pubDate>Wed, 27 Feb 2008 10:53:02 +0800</pubDate><guid isPermaLink="false">tag:flickr.com,2005:/photo/2294609171</guid><dc:creator>车东@FlickR</dc:creator><fs:srclink>http://www.flickr.com/photos/chedong/2294609171/</fs:srclink><fs:srcfeed>http://api.flickr.com/services/feeds/photos_public.gne?id=17672638@N00&amp;amp;amp;lang=en-us&amp;amp;format=atom</fs:srcfeed><fs:itemid>feedsky/chedong/~5904151/504832/1230875</fs:itemid><fs:burntype>photo</fs:burntype></item></channel></rss>