linux-kernel - Re: [PATCH 8/9] perf,tools: caculate and save tsc/avg/bzy freq in he

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20150717212740.GL7380@tassilo.jf.intel.com>
Date:	Fri, 17 Jul 2015 14:27:40 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	"Liang, Kan" <kan.liang@...el.com>
Cc:	"a.p.zijlstra@...llo.nl" <a.p.zijlstra@...llo.nl>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"acme@...nel.org" <acme@...nel.org>,
	"eranian@...gle.com" <eranian@...gle.com>,
	"mark.rutland@....com" <mark.rutland@....com>,
	"Hunter, Adrian" <adrian.hunter@...el.com>,
	"dsahern@...il.com" <dsahern@...il.com>,
	"jolsa@...nel.org" <jolsa@...nel.org>,
	"namhyung@...nel.org" <namhyung@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 8/9] perf,tools: caculate and save tsc/avg/bzy freq in
 he_stat

> 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@...ux.intel.com -- Speaking for myself only
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/