了解系列之-内存
May 28th, 2012
了解内存
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哇晒，这些都是计算机组成原理里面的东西。你们自己DIY服务器，把这些都研究得这么透彻
Yu Feng Reply:
May 28th, 2012 at 12:45 pm
写程序的需要
要是提供下载就完美了
Yu Feng Reply:
May 28th, 2012 at 9:45 pm
http://blog.yufeng.info/ppt
starwind Reply:
May 29th, 2012 at 10:21 am
大爱！太感谢了！
您好！我看了您写的了解CPU和了解内存，但是发现两者在cpu访问缓存的速度上数据不一致，了解内存里面您的数据二级缓存的时间大概是一级缓存的10倍了，但是了解CPU里面只有3倍的样子。我记得之前在微博里面见你们讨论过，好像应该是3倍左右才对。然后我在i7的机器上实测了一下，大概是4倍
Yu Feng Reply:
September 21st, 2012 at 1:40 pm
赞考证精神，其实这个速度差别具体数字不重要，知道数量级才是重点，因为这个数字不同的CPU，不同的厂商都不同，我们程序也不是直接面对这个cache的。