Re: mmotm 2008-09-08-18-32 uploaded

From: Andrew Morton
Date: Tue Sep 09 2008 - 13:38:25 EST


On Tue, 9 Sep 2008 19:25:44 +0900 KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> wrote:

> On Mon, 08 Sep 2008 18:35:16 -0700
> akpm@xxxxxxxxxxxxxxxxxxxx wrote:
>
> > The mm-of-the-moment snapshot 2008-09-08-18-32 has been uploaded to
> >
> > http://userweb.kernel.org/~akpm/mmotm/
> >
> > It contains the following patches against 2.6.27-rc5:
> >
>
> I'll dig if I have time. This is just a report.
>
> I tries UnixBench4.1 on x86_64/2cpu/1socket machine. (memory cgroup is enabled)
>
> Following is comparison with a mmtom based on rc4.
> ===
> [rc4mm1]
> Execl Throughput 3004.4 lps (29.6 secs, 3 samples)
> C Compiler Throughput 1017.9 lpm (60.0 secs, 3 samples)
> Shell Scripts (1 concurrent) 5726.3 lpm (60.0 secs, 3 samples)
> Shell Scripts (8 concurrent) 1124.3 lpm (60.0 secs, 3 samples)
> Shell Scripts (16 concurrent) 576.0 lpm (60.0 secs, 3 samples)
> Dc: sqrt(2) to 99 decimal places 125446.5 lpm (30.0 secs, 3 samples)
>
> [rc5mm1]
> Execl Throughput 3006.5 lps (29.8 secs, 3 samples)
> C Compiler Throughput 1006.7 lpm (60.0 secs, 3 samples)
> Shell Scripts (1 concurrent) 4863.7 lpm (60.0 secs, 3 samples)
> Shell Scripts (8 concurrent) 943.7 lpm (60.0 secs, 3 samples)
> Shell Scripts (16 concurrent) 482.7 lpm (60.0 secs, 3 samples)
> Dc: sqrt(2) to 99 decimal places 124804.9 lpm (30.0 secs, 3 samples)
> ==
> 15% down in shell script test. Any idea ? (scheduler ?)

Dunno. There is a largel number of debugging patches at the tail of
the series so they should be the first thing to eliminate.

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