linux-kernel - Re: [PATCH v3 06/11] perf, tools, stat: Support JSON metrics in perf stat

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Date:   Tue, 5 Sep 2017 15:09:19 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Andi Kleen <andi@...stfloor.org>
Cc:     jolsa@...nel.org, linux-kernel@...r.kernel.org,
        Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH v3 06/11] perf, tools, stat: Support JSON metrics in perf
 stat

Em Mon, Sep 04, 2017 at 10:37:25AM -0700, Andi Kleen escreveu:
> On Mon, Sep 04, 2017 at 02:11:28PM -0300, Arnaldo Carvalho de Melo wrote:
> > Em Thu, Aug 31, 2017 at 12:40:31PM -0700, Andi Kleen escreveu:
> > > The actual JSON metrics are in a separate pull request.
> > 
> > Yeah, I noticed when trying to test it :-\
> > 
> > Was this pull req submitted?
> 
> Not yet. I was waiting to finish review.
> 
> It makes perf crash until you apply the metricgroup patchkit first.
> 
> But you can get it here
> 
> git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc.git perf/intel-json-metrics-2

Ok, so I tried installing the Broadwell ones (one of my test machines)
and got into:

[root@...et ~]# perf stat -M Pipeline flops
bpf: builtin compilation failed: -95, try external compiler
ERROR: problems with path cpu/uops_executed.c: No such file or directory
Cannot set up events {uops_retired.retire_slots,inst_retired.any}:W,{inst_retired.any,cycles}:W,{uops_executed.thread,cpu/uops_executed.core,cmask=1/,uops_executed.cycles_ge_1_uop_exec}:W

 Usage: perf stat [<options>] [<command>]

    -M, --metrics <metric/metric group list>
                          monitor specified metrics or metric groups (separated by ,)
[root@...et ~]# perf stat -M Pipeline flops


Wasn't this already fixed?

This is with these patches applied:

[acme@...et linux]$ git log --oneline -5
5e6bf24a1929 (HEAD) perf stat: Support JSON metrics in perf stat
b1e1f50913c8 perf pmu: Extract function to get JSON alias map
af8aca46b528 perf stat: Print generic metric header even for failed expressions
15669491ee54 perf stat: Factor out generic metric printing
7d8900f2984c perf vendor events: Support metric_group and no event name in JSON parser
[acme@...et linux]$ git log --oneline -10
5e6bf24a1929 (HEAD) perf stat: Support JSON metrics in perf stat
b1e1f50913c8 perf pmu: Extract function to get JSON alias map
af8aca46b528 perf stat: Print generic metric header even for failed expressions
15669491ee54 perf stat: Factor out generic metric printing
7d8900f2984c perf vendor events: Support metric_group and no event name in JSON parser
8f6ea3aac2e2 perf tools: Support weak groups in 'perf stat'
b5ef5ea5e8ed perf sched timehist: Add pid and tid options
eba9fac01761 (tag: perf-core-for-mingo-4.14-20170901, acme/perf/core) perf annotate browser: Help for cycling thru hottest instructions with TAB/shift+TAB
63ce8449bc10 perf stat: Only auto-merge events that are PMU aliases
fc33dccba395 perf test: Add test case for PERF_SAMPLE_PHYS_ADDR
[acme@...et linux]$ 

Will try with all of them...

- Arnaldo