开源HTTP加速器 Varnish Cache 3.0.1 正式版发布

     Varnish是一款高性能的开源HTTP加速器，挪威最大的在线报纸 Verdens Gang (http://www.vg.no) 使用3台Varnish代替了原来的12台squid，性能居然比以前更好。    <br />    <br /> Varnish 的作者Poul-Henning Kamp是FreeBSD的内核开发者之一，他认为现在的计算机比起1975年已经复杂许多。在1975年时，储存媒介只有两种：内存与硬盘。但现在计算 机系统的内存除了主存外，还包括了cpu内的L1、L2，甚至有L3快取。硬盘上也有自己的快取装置，因此squid cache自行处理物件替换的架构不可能得知这些情况而做到最佳化，但操作系统可以得知这些情况，所以这部份的工作应该交给操作系统处理，这就是 Varnish cache设计架构。    <br />    <br />    <span style="font-weight:bold;">项目地址：</span>    <a style="font-weight:bold;" href="/misc/goto?guid=4958186920264606442" target="_blank">https://www.varnish-cache.org/</a>    <br />    <br />    <p>Varnish 3.0.1 正式版发布了，与 3.0 版本比较，改进包括：</p>    <ul>     <li>Objects with grace and keep set were mistakenly seen as candidates for the shortlived storage, but would not be cleaned up quickly, something that manifested as if there was a memory leak. This is now fixed.</li>     <li>When multiple clients were waiting for an object, all clients would be woken up when an object became available, leading to stuck threads. This has now been fixed</li>     <li>A bug in how XML entities were handled with ESI has been fixed</li>     <li>The documentation has seen numerous updates</li>     <li>varnishncsa is now more stable and has support for showing arbitrary request and response fields</li>    </ul>    <img title="开源HTTP加速器 Varnish Cache 3.0.1 正式版发布" border="0" alt="开源HTTP加速器 Varnish Cache 3.0.1 正式版发布" src="https://simg.open-open.com/show/14405b14e8ece537591dfc6176519dff.jpg" width="200" height="75" />    <br />    <p>下载：</p>    <ul>     <li><a href="/misc/goto?guid=4958188333038426568">Source</a></li>     <li><a href="/misc/goto?guid=4958188333788331835">Debian</a></li>     <li><a href="/misc/goto?guid=4958188334533949255">FreeBSD</a></li>     <li><a href="/misc/goto?guid=4958188335270509801">Red Hat Enterprise Linux 5</a></li>     <li><a href="/misc/goto?guid=4958188335998302052">Ubuntu</a></li>    </ul>