Re: Update cacheline size on X86_GENERIC

From: Andi Kleen
Date: Sat Oct 11 2008 - 09:55:01 EST


> No immediate ideas. Jens probably is a good person to cc. With direct IO
> workloads, hd_struct should mostly only be touched in partition remapping
> and IO accounting.

I found it doubtful if grouping the rw and ro members together was a good
idea.

> At this point, you would want to cacheline align hd_struct. So if you

The problem is probably not false sharing, but simply cache misses because it's
so big. I think.

-Andi
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