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Re: [PATCH 1/4] perf stat: Basic support for TopDown in perf stat

From Andi Kleen <ak@linux.intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH 1/4] perf stat: Basic support for TopDown in perf stat
Date 2016-05-30 18:10 +0200
Message-ID <rExVo-6ui-17@gated-at.bofh.it> (permalink)
References <rCqEG-7B3-11@gated-at.bofh.it> <rExVo-6ui-19@gated-at.bofh.it>
Organization linux.* mail to news gateway

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> Which is a Broadwell-U, dual-core, 14 nm.
> 
> [root@jouet linux]# echo 0 > /proc/sys/kernel/nmi_watchdog
> [root@jouet linux]# perf stat --topdown -a usleep 1
> System does not support topdown
> [root@jouet linux]# cat /proc/sys/kernel/nmi_watchdog
> 0
> [root@jouet linux]#
> 
> Please advise.

You don't have the kernel patches?

They're in PeterZ's tree, but not yet in tip
https://git.kernel.org/cgit/linux/kernel/git/peterz/queue.git/log/?h=perf/core

-Andi

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[PATCH 1/4] perf stat: Basic support for TopDown in perf stat Andi Kleen <andi@firstfloor.org> - 2016-05-24 22:00 +0200
  [PATCH 4/4] perf stat: Add missing aggregation headers for --metric-only CSV Andi Kleen <andi@firstfloor.org> - 2016-05-24 22:00 +0200
  Re: [PATCH 1/4] perf stat: Basic support for TopDown in perf stat Andi Kleen <ak@linux.intel.com> - 2016-05-30 18:10 +0200
    Re: [PATCH 1/4] perf stat: Basic support for TopDown in perf stat Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-30 18:20 +0200
  Re: [PATCH 1/4] perf stat: Basic support for TopDown in perf stat Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-30 18:10 +0200

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