Re: [PATCH 3/3 v3] mm/vmalloc: Cache the vmalloc memory info

From: Rasmus Villemoes
Date: Mon Aug 24 2015 - 04:39:26 EST

On Mon, Aug 24 2015, Ingo Molnar <mingo@xxxxxxxxxx> wrote:

> Thanks, is the fixed up changelog below better?

Yes, though Linus specifically referred to "make test" (but I guess one
could/should consider that part of the build process).


> mm/vmalloc: Cache the vmalloc memory info
> Linus reported that for scripting-intense workloads such as the
> Git build, glibc's qsort will read /proc/meminfo for every process
> created (by way of get_phys_pages()), which causes the Git build
> to generate a surprising amount of kernel overhead.
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