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SubjectRe: [PATCH 6/6] x86: mm: set TLB flush tunable to sane value (33)
On 04/21/2014 02:24 PM, Dave Hansen wrote:
> From: Dave Hansen <dave.hansen@linux.intel.com>
>
> This has been run through Intel's LKP tests across a wide range
> of modern sytems and workloads and it wasn't shown to make a
> measurable performance difference positive or negative.
>
> Now that we have some shiny new tracepoints, we can actually
> figure out what the heck is going on.
>
> During a kernel compile, 60% of the flush_tlb_mm_range() calls
> are for a single page. It breaks down like this:

> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>

Acked-by: Rik van Riel <riel@redhat.com>

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