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linux用ssd有啥好处？有啥要注意的没？

发信人: mitbbs2715 (好吃不懒做), 信区: Linux
标  题: Re: linux用ssd有啥好处？有啥要注意的没？
发信站: BBS 未名空间站 (Thu May  1 01:45:22 2014, 美东)

应该就是tmpfs
对我来说意义不大，除非是 sync mount的，这么用太亏了，况且本来就有system
cache,所以意义不大， 放HDD应该就可以了.
compile大项目的时候tmpfs比较有用，能快个20%左右

如果有hibernation，可以把hibernation file放在SSD上，如果是用swap做
hibernation这时候swap放在SSD上，现代linux除了hibernation基本不用swap,因此可
以放心放在SSD上。

/挂SSD，/home挂HDD是对的，但我觉得不是绝对的，比如一般syslog会sync到disk,这
个对SSD还是伤的，这种东西link到HDD上去 (不建议-/var). 而如果home中有不怎么修
改又常用的大文件，比如一些iso之类的，完全可以放到SSD上去。

noatime比较重要不然每读一次就一个write.

不过嘛，以上都是理论上的，现在的SSD没啥问题，每天写50GB也能毫无压力用上五六
年，所以我都是直接裸挂/,然后每天rsync一次到HDD就好。




【 在 thomasz (thomasz) 的大作中提到: 】
: tmp丢到内存里？这是怎么设置的？
http://gengwg.blogspot.com/
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