Re: [PATCH v2 4/6] x86: Add clear_page_nocache
From: Andi Kleen <hidden>
Date: 2012-08-13 16:27:57
Also in:
linux-mips, linux-mm, linux-sh, lkml, sparclinux
Moving 64 bytes per cycle is faster on Sandy Bridge, but slower on Westmere. Any preference? ;)
You have to be careful with these benchmarks. - You need to make sure the data is cache cold, cache hot is misleading. - The numbers can change if you have multiple CPUs doing this in parallel. -Andi