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Date:   Sun, 22 Mar 2020 16:18:20 -0700
From:   Andi Kleen <ak@linux.intel.com>
To:     Peter Zijlstra <peterz@infradead.org>
Cc:     Ian Rogers <irogers@google.com>, Ingo Molnar <mingo@redhat.com>,
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        Kan Liang <kan.liang@linux.intel.com>,
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Subject: Re: [PATCH v2] perf test x86: address multiplexing in rdpmc test
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> Here's something a little better. Much of it copied from linux/math64.h
> and asm/div64.h.

Not sure what the point is of micro optimizing a unit test?

This is never run in production.

-Andi