L1 cache thrashing affects performance of HIMENO benchmark

[Adrian Chadd]

I've CC'ed jasone on this as it's an interesting side-effect of memory
allocation logic.

Jason - any comments?



Adrian

On 5 January 2013 07:38, Hakisho Nukama <nukama at gmail.com> wrote:
> Hi,
>
> FreeBSD (PCBSD) is slower compared to Linux and kFreeBSD in this
> benchmark of HIMENO:
> http://openbenchmarking.org/prospect/1202215-BY-FREEBSD9683/88ac7a01c6cb355d7e7603224b2ee1e5a4cb881d
> Also DragonFly BSD compares worse to kFreeBSD and Linux:
> http://www.phoronix.com/scan.php?page=article&item=dragonfly_linux_32&num=3
> http://openbenchmarking.org/prospect/1206255-SU-DRAGONFLY55/88ac7a01c6cb355d7e7603224b2ee1e5a4cb881d
>
> Matt, Venkatesh and Alex investigated this performance problem and
> came to these results:
> http://leaf.dragonflybsd.org/mailarchive/users/2013-01/msg00011.html
>
> Best Regards,
> Hakisho Nukama
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