Re: [PATCH 8/9] perf,tools: caculate and save tsc/avg/bzy freq in he_stat

From	Andi Kleen <ak@linux.intel.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 8/9] perf,tools: caculate and save tsc/avg/bzy freq in he_stat
Date	2015-07-17 23:30 +0200
Message-ID	<pNlmG-yp-9@gated-at.bofh.it> (permalink)
References	<pN4OR-21D-3@gated-at.bofh.it> <pN4Yy-2cQ-7@gated-at.bofh.it> <pNkqC-7EV-11@gated-at.bofh.it> <pNkTE-8cE-19@gated-at.bofh.it>
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> The concept of tsc, avg and bzy are from turbostat.
> Here is the definition from turbostat readme.

turbostat can do this because it is model specific, but perf user code
is not.  It has to be architectural definitions only. And the architectural
definition of ASTATE MSTATE in the SDM is that it is only valid
as a ratio.

Please use the formulas I described.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only
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Re: [PATCH 8/9] perf,tools: caculate and save tsc/avg/bzy freq in  he_stat Andi Kleen <ak@linux.intel.com> - 2015-07-17 23:30 +0200

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