L1 cache thrashing affects performance of HIMENO benchmark

[Hakisho Nukama]

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