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From: Andi Kleen <andi@firstfloor.org>
To: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>,
	acme@kernel.org, peterz@infradead.org, jolsa@kernel.org,
	mingo@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: Add top down metrics to perf stat
Date: Fri, 20 May 2016 07:18:48 -0700
Message-ID: <20160520141848.GS13997@two.firstfloor.org> (raw)
In-Reply-To: <20160520095954.GA28818@krava>

> [jolsa@ibm-x3650m4-01 perf]$ sudo ./perf stat --topdown -I 1000 -a
> nmi_watchdog enabled with topdown. May give wrong results.
> Disable with echo 0 > /proc/sys/kernel/nmi_watchdog
>      1.002097350                   retiring             bad speculation      frontend bound       backend bound        
>      1.002097350 S0-C0           2     38.1%                0.0%               59.2%                2.7%           
>      1.002097350 S0-C1           2     38.1%                0.1%               59.7%                2.1%           

Ah I see now. this is --metric-only not displaying. --topdown enables
--metric-only implicitely.

I'll send a separate patch for that because metric only was already
merged separately. So it's not really a problem in this patchkit,
but in a previous one.

-Andi
-- 
ak@linux.intel.com -- Speaking for myself only.

  reply index

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-14  1:44 Andi Kleen
2016-05-14  1:44 ` [PATCH 1/8] x86/topology: Add topology_max_smt_threads() Andi Kleen
2016-05-14  1:44 ` [PATCH 2/8] perf/x86: Support sysfs files depending on SMT status Andi Kleen
2016-05-14  1:44 ` [PATCH 3/8] perf/x86/intel: Add Top Down events to Intel Core Andi Kleen
2016-05-14  1:44 ` [PATCH 4/8] perf/x86/intel: Add Top Down events to Intel Atom Andi Kleen
2016-05-14  1:44 ` [PATCH 5/8] perf/x86/intel: Use new topology_max_smt_threads() in HT leak workaround Andi Kleen
2016-05-14  1:44 ` [PATCH 6/8] perf stat: Avoid fractional digits for integer scales Andi Kleen
2016-05-16 12:53   ` Jiri Olsa
2016-05-14  1:44 ` [PATCH 7/8] perf stat: Basic support for TopDown in perf stat Andi Kleen
2016-05-14  1:44 ` [PATCH 8/8] perf stat: Add computation of TopDown formulas Andi Kleen
2016-05-20 10:23   ` Jiri Olsa
2016-05-20 13:38     ` Andi Kleen
2016-05-20 13:43       ` Jiri Olsa
2016-05-20 14:15         ` Andi Kleen
2016-05-20 13:43     ` Andi Kleen
2016-05-16 12:58 ` Add top down metrics to perf stat Jiri Olsa
2016-05-19 23:51   ` Andi Kleen
2016-05-20  9:59     ` Jiri Olsa
2016-05-20 14:18       ` Andi Kleen [this message]
2016-05-20 10:24 ` Jiri Olsa
  -- strict thread matches above, loose matches on Subject: below --
2016-05-20  0:09 Andi Kleen
2016-05-05 23:03 Andi Kleen
2016-05-12  7:47 ` Jiri Olsa
2016-04-27 20:00 Andi Kleen
2016-04-04 20:41 Andi Kleen
2016-03-22 23:08 Andi Kleen
2016-03-27 11:27 ` Jiri Olsa
2016-03-27 15:22   ` Andi Kleen
2016-01-20  2:27 Andi Kleen
2016-01-16  1:12 Andi Kleen
2015-08-08  1:06 Andi Kleen

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