Re: big ext3 sequential write improvement in 2.5.51-mm1 gone in 2.5.53-mm1?

From: Andrew Morton (akpm@digeo.com)
Date: Fri Jan 24 2003 - 16:39:56 EST


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..
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Fri Jan 31 2003 - 22:00:13 EST