Re: big ext3 sequential write improvement in 2.5.51-mm1 gone in

Andrew Morton (akpm@digeo.com)
Fri, 24 Jan 2003 13:39:56 -0800

rwhron@earthlink.net wrote:
>
> > It is important to specify how much memory you have, and how you are
> > invoking qsbench.
>
> There is 3.75 GB of ram. I grab MemTotal from /proc/meminfo, and run
> 4 qsbench processes. Each qsbench uses 30% of MemTotal (1089 megs).

Yes, 2.5 sucks at that. Run `top', observe how in 2.4, one qsbench instance
grabs all the CPU time, then exits. The remaining three can now complete
with no swapout at all..
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