[CentOS] partitioning order and IO performance

John R Pierce pierce at hogranch.com
Thu Dec 24 04:50:35 UTC 2009


Timo Schoeler wrote:
>> But these days, nothing should ever be reading from swap, although you 
>> might write a bit there.  If it does, buy some more RAM instead of 
>> worrying about disk performance.
>>     
>
> Sure, absolutely no question; *but* in the (ancient) times it was
> important, it was 'nice' to have it as fast as possible, i.e. on the
> fastest section(s) of the used HDs. So...
>   


unless you're using tmpfs, where your swap space doubles as backing 
store for your /tmp    I use this quite regularly on solaris, it 
performs much better than a conventional journaled file system, as 
recovery from system crashes is totally not a priority.




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