linux-kernel - Re: [PATCH v2 7/7] perf test: Test pmu-events aliases

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Message-ID: <20200319183622.GD14841@kernel.org>
Date:   Thu, 19 Mar 2020 15:36:22 -0300
From:   Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     John Garry <john.garry@...wei.com>, peterz@...radead.org,
        mingo@...hat.com, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, namhyung@...nel.org,
        will@...nel.org, ak@...ux.intel.com, linuxarm@...wei.com,
        linux-kernel@...r.kernel.org, james.clark@....com,
        qiangqing.zhang@....com
Subject: Re: [PATCH v2 7/7] perf test: Test pmu-events aliases

Em Tue, Mar 17, 2020 at 06:07:30PM +0100, Jiri Olsa escreveu:
> On Tue, Mar 17, 2020 at 04:41:04PM +0000, John Garry wrote:
> > On 17/03/2020 16:20, Jiri Olsa wrote:
> > > On Tue, Mar 17, 2020 at 07:02:19PM +0800, John Garry wrote:
> > > > @@ -36,6 +51,8 @@ static struct perf_pmu_test_event test_cpu_events[] = {
> > > >   			.desc = "Number of segment register loads",
> > > >   			.topic = "other",
> > > >   		},
> > > > +		.alias_str = "umask=0x80,(null)=0x30d40,event=0x6",

> > > ah so we are using other pmus because of the format definitions

> > > why is there the '(null)' in there?

> > Well this is just coming from the generated alias string in the pmu code,
> > and it does not seem to be handling "period" argument properly. It needs to
> > be checked.
 
> nice, it found first issue already ;-)

Applied the series to perf/core, good job! What about the fix for the
above (null) problem?

Cheers,

- Arnaldo