From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <andi-Vw/NltI1exuRpAAqCnN02g@public.gmane.org>
Subject: Re: [RFC PATCH v8 1/9] Restartable sequences system call
Date: Fri, 19 Aug 2016 13:56:11 -0700
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> Nobody gets a cpu number just to get a cpu number - it's not a useful
> thing to benchmark. What does getcpu() so much that we care?

malloc is the primary target I believe. Saves lots of memory to keep
caches per CPU rather than per thread.

-Andi