Re: 'perf test tsc' failing, bisected to "sched/clock: Provide better clock continuity"

From	Arnaldo Carvalho de Melo <acme@kernel.org>
Newsgroups	linux.kernel
Subject	Re: 'perf test tsc' failing, bisected to "sched/clock: Provide better clock continuity"
Date	2017-03-16 20:40 +0100
Message-ID	<tlJfY-2Un-7@gated-at.bofh.it> (permalink)
References	<tlEgi-7RT-31@gated-at.bofh.it> <tlF2I-8g9-53@gated-at.bofh.it> <tlIae-2ba-21@gated-at.bofh.it> <tlItB-2iT-43@gated-at.bofh.it>
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Em Thu, Mar 16, 2017 at 03:36:17PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Thu, Mar 16, 2017 at 07:11:21PM +0100, Peter Zijlstra escreveu:
> > On Thu, Mar 16, 2017 at 03:53:11PM +0100, Peter Zijlstra wrote:
> > > On Thu, Mar 16, 2017 at 11:01:03AM -0300, Arnaldo Carvalho de Melo wrote:
> > > > [root@jouet ~]# perf test -v tsc
> > > > 55: Convert perf time to TSC                   :
> > > > Convert perf time to TSC: FAILED!
> > > >     sched/clock: Provide better clock continuity
> 
> > > Right, ahunter also complained about this. I had a half arsed fugly
> > > patch in the works. Let me see if I can improve and finish.
>  
> > The below seems to cure things for me...
> 
> Building...

Didn't apply to perf/urgent:

[acme@jouet linux]$ patch -p1 < /wb/1.patch 
patching file arch/x86/events/core.c
Hunk #1 succeeded at 2243 (offset -1 lines).
Hunk #2 succeeded at 2251 (offset -1 lines).
Hunk #3 succeeded at 2265 (offset -1 lines).
Hunk #4 succeeded at 2273 (offset -1 lines).
patching file arch/x86/include/asm/timer.h
patching file arch/x86/kernel/tsc.c
Hunk #1 FAILED at 328.
Hunk #2 FAILED at 336.
2 out of 2 hunks FAILED -- saving rejects to file arch/x86/kernel/tsc.c.rej
can't find file to patch at input line 182
Perhaps you used the wrong -p or --strip option?
The text leading up to this was:
--------------------------
|--- a/include/linux/sched/clock.h
|+++ b/include/linux/sched/clock.h
--------------------------
File to patch: ^C
[acme@jouet linux]$ 
[acme@jouet linux]$

Trying with perf/core...

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Thread

'perf test tsc' failing, bisected to "sched/clock: Provide better  clock continuity" Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-03-16 15:10 +0100
  Re: 'perf test tsc' failing, bisected to "sched/clock: Provide  better clock continuity" Peter Zijlstra <peterz@infradead.org> - 2017-03-16 16:00 +0100
    Re: 'perf test tsc' failing, bisected to "sched/clock: Provide  better clock continuity" Peter Zijlstra <peterz@infradead.org> - 2017-03-16 19:20 +0100
      Re: 'perf test tsc' failing, bisected to "sched/clock: Provide  better clock continuity" Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-03-16 19:40 +0100
        Re: 'perf test tsc' failing, bisected to "sched/clock: Provide  better clock continuity" Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-03-16 20:30 +0100
          Re: 'perf test tsc' failing, bisected to "sched/clock: Provide  better clock continuity" Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-03-20 14:30 +0100
        Re: 'perf test tsc' failing, bisected to "sched/clock: Provide  better clock continuity" Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-03-16 20:40 +0100

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