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	<title>The Caching Chronicles</title>
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	<link>http://cachingchronicles.com</link>
	<description>Just another WordPress weblog</description>
	<lastBuildDate>Mon, 09 Nov 2009 12:18:25 +0000</lastBuildDate>
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		<title>Varnish 2.0.5 released</title>
		<link>http://cachingchronicles.com/varnish-2-0-5-released/</link>
		<comments>http://cachingchronicles.com/varnish-2-0-5-released/#comments</comments>
		<pubDate>Mon, 09 Nov 2009 12:09:30 +0000</pubDate>
		<dc:creator>sru</dc:creator>
				<category><![CDATA[Caching in General]]></category>
		<category><![CDATA[Varnish]]></category>
		<category><![CDATA[Caching]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Performance]]></category>

		<guid isPermaLink="false">http://cachingchronicles.com/?p=64</guid>
		<description><![CDATA[More than six months after the release of version 2.0.4 today Varnish 2.0.5 has been released to the public. From the announcement:
This release contains multiple changes, amongst them:
Performance improvements, particularly on Linux.
Implement support for HTTP continuation lines
Handle illegal responses from the backend better by serving a 503 page rather than panic-ing
Add backtrace to assertion errors. [...]]]></description>
		<wfw:commentRss>http://cachingchronicles.com/varnish-2-0-5-released/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>Stack size patch for Varnish allows for more threads on Linux</title>
		<link>http://cachingchronicles.com/stack-size-patch-for-varnish-allows-for-more-threads-on-linux/</link>
		<comments>http://cachingchronicles.com/stack-size-patch-for-varnish-allows-for-more-threads-on-linux/#comments</comments>
		<pubDate>Wed, 04 Nov 2009 09:50:22 +0000</pubDate>
		<dc:creator>sru</dc:creator>
				<category><![CDATA[Caching in General]]></category>
		<category><![CDATA[Varnish]]></category>
		<category><![CDATA[Caching]]></category>
		<category><![CDATA[Performance]]></category>
		<category><![CDATA[Tips and Tricks]]></category>

		<guid isPermaLink="false">http://cachingchronicles.com/?p=58</guid>
		<description><![CDATA[As you may or may not know, on Linux the number of threads a process can spawn is theoretically unlimited. In reality, however, you will encounter a small problem there: Since the initial stack size for every user is set to a whooping 8 MB you will run out of memory for your thread&#8217;s stacks [...]]]></description>
		<wfw:commentRss>http://cachingchronicles.com/stack-size-patch-for-varnish-allows-for-more-threads-on-linux/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Caching Performance: Squid vs. Varnish</title>
		<link>http://cachingchronicles.com/caching-performance-squid-vs-varnish/</link>
		<comments>http://cachingchronicles.com/caching-performance-squid-vs-varnish/#comments</comments>
		<pubDate>Wed, 09 Sep 2009 12:07:17 +0000</pubDate>
		<dc:creator>sru</dc:creator>
				<category><![CDATA[Benchmarks]]></category>
		<category><![CDATA[Caching in General]]></category>
		<category><![CDATA[Squid]]></category>
		<category><![CDATA[Varnish]]></category>
		<category><![CDATA[Benchmark]]></category>
		<category><![CDATA[Caching]]></category>
		<category><![CDATA[Holy War]]></category>
		<category><![CDATA[Performance]]></category>

		<guid isPermaLink="false">http://cachingchronicles.com/?p=55</guid>
		<description><![CDATA[On deserialized.com there&#8217;s a nice pair (Part I &#038; Part II) of articles comparing Squid and Varnish.
While the findings there closely resemble the results of my own testing and live installations, they have to be taken with a grain of salt (as you should do with all test results anyway). The major thing here is [...]]]></description>
		<wfw:commentRss>http://cachingchronicles.com/caching-performance-squid-vs-varnish/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Varnish to the rescue (big math of small numbers)</title>
		<link>http://cachingchronicles.com/varnish-to-the-rescue-big-math-of-small-numbers/</link>
		<comments>http://cachingchronicles.com/varnish-to-the-rescue-big-math-of-small-numbers/#comments</comments>
		<pubDate>Mon, 07 Sep 2009 00:06:22 +0000</pubDate>
		<dc:creator>sru</dc:creator>
				<category><![CDATA[Caching in General]]></category>
		<category><![CDATA[Varnish]]></category>
		<category><![CDATA[business value]]></category>
		<category><![CDATA[Caching]]></category>
		<category><![CDATA[profit]]></category>

		<guid isPermaLink="false">http://cachingchronicles.com/?p=41</guid>
		<description><![CDATA[Simon Nielsen from the FreeBSD project writes about his success with using Varnish to speed up content delivery with an interesting statement close to the end:
The wiki (MoinMoin) doesn’t support explicitly purging changed pages from Varnish, so the wiki pages can’t be cached for very long since we would risk returning out of date pages [...]]]></description>
		<wfw:commentRss>http://cachingchronicles.com/varnish-to-the-rescue-big-math-of-small-numbers/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Varnish: The One-Line Turbo-Booster</title>
		<link>http://cachingchronicles.com/varnish-one-line-turbo-booster/</link>
		<comments>http://cachingchronicles.com/varnish-one-line-turbo-booster/#comments</comments>
		<pubDate>Tue, 14 Apr 2009 21:06:33 +0000</pubDate>
		<dc:creator>sru</dc:creator>
				<category><![CDATA[Caching in General]]></category>
		<category><![CDATA[Varnish]]></category>
		<category><![CDATA[Caching]]></category>
		<category><![CDATA[Linux]]></category>

		<guid isPermaLink="false">http://cachingchronicles.com/?p=36</guid>
		<description><![CDATA[Just found this in Varnish&#8217;s Trac:
On linux I saw a 10-20x decrease in IO from reading the disk
If that&#8217;s true, it clearly show&#8217;s the power of a single line of added code:
(void) madvise(p, sz, MADV_RANDOM);
Hopefully this will have a similar effect on other operating systems as well.
]]></description>
		<wfw:commentRss>http://cachingchronicles.com/varnish-one-line-turbo-booster/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Squid 3.0 Stable 14 released</title>
		<link>http://cachingchronicles.com/squid-30-stable-14-released/</link>
		<comments>http://cachingchronicles.com/squid-30-stable-14-released/#comments</comments>
		<pubDate>Sun, 12 Apr 2009 22:42:20 +0000</pubDate>
		<dc:creator>sru</dc:creator>
				<category><![CDATA[Squid]]></category>
		<category><![CDATA[Caching]]></category>

		<guid isPermaLink="false">http://cachingchronicles.com/?p=20</guid>
		<description><![CDATA[On April, 11 2009 the Squid guys released version 3.0Stable14. Changes from the ChangeLog:


HTTP 1.1: Forward OPTIONS requests properly
 The debug mode option &#8216;-d&#8217; was not documented in LDAP helpers usage message
 Windows port: Added support for Windows 7, Windows Server 2008 R2 and later
 Windows port: Fix PSAPI.DLL usage, is always available on Windows [...]]]></description>
		<wfw:commentRss>http://cachingchronicles.com/squid-30-stable-14-released/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Squid 3.1.0.7 released</title>
		<link>http://cachingchronicles.com/squid-3107-released/</link>
		<comments>http://cachingchronicles.com/squid-3107-released/#comments</comments>
		<pubDate>Wed, 08 Apr 2009 22:58:38 +0000</pubDate>
		<dc:creator>sru</dc:creator>
				<category><![CDATA[Caching in General]]></category>
		<category><![CDATA[Squid]]></category>
		<category><![CDATA[Caching]]></category>

		<guid isPermaLink="false">http://cachingchronicles.com/?p=28</guid>
		<description><![CDATA[As can be seen in the download section of Squid-Cache.org, Squid 3.1.0.7 has been released. Changes are essentially the same as in 3.0Stable14:


Bug #2628: Need way to override DEFAULT_PID_FILE
Regression fix: test for .po properly.
HTTP 1.1: Forward OPTIONS requests properly
The debug mode option &#8216;-d&#8217; was not documented in LDAP helpers usage message
Purge last remnants of inet_ntoa
Windows [...]]]></description>
		<wfw:commentRss>http://cachingchronicles.com/squid-3107-released/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Varnish 2.0.4 released</title>
		<link>http://cachingchronicles.com/varnish-204-released/</link>
		<comments>http://cachingchronicles.com/varnish-204-released/#comments</comments>
		<pubDate>Wed, 01 Apr 2009 15:59:22 +0000</pubDate>
		<dc:creator>sru</dc:creator>
				<category><![CDATA[Caching in General]]></category>
		<category><![CDATA[Varnish]]></category>
		<category><![CDATA[Caching]]></category>

		<guid isPermaLink="false">http://cachingchronicles.com/?p=7</guid>
		<description><![CDATA[Today the Varnish Project released version 2.0.4 of their proxy cache. According to the web site, the changes from 2.0.3 are:

Serve graced objects if the backend is unhealthy.
Portability fixes for Solaris, MacOS X/Darwin and NetBSD
Documentation updates
Added server.hostname and server.identity to VCL.
Fixed a problem where we would sleep for far too long when we would run [...]]]></description>
		<wfw:commentRss>http://cachingchronicles.com/varnish-204-released/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Welcome to &#8220;The Caching Chronicles&#8221;</title>
		<link>http://cachingchronicles.com/welcome-to-the-caching-chronicles/</link>
		<comments>http://cachingchronicles.com/welcome-to-the-caching-chronicles/#comments</comments>
		<pubDate>Tue, 31 Mar 2009 18:53:37 +0000</pubDate>
		<dc:creator>sru</dc:creator>
				<category><![CDATA[Caching in General]]></category>
		<category><![CDATA[Caching]]></category>
		<category><![CDATA[General]]></category>
		<category><![CDATA[Squid]]></category>
		<category><![CDATA[Varnish]]></category>

		<guid isPermaLink="false">http://cachingchronicles.com/?p=3</guid>
		<description><![CDATA[This is yet another site born in my search for a place where I can drop my thoughts, ideas and other stuff. This time it&#8217;s all about caching. In particular this means caching of content normally delivered by a web server to a requesting party.  Now, why caching? Isn&#8217;t that a technology we should [...]]]></description>
		<wfw:commentRss>http://cachingchronicles.com/welcome-to-the-caching-chronicles/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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