linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: "Paul A. Clarke" <pc@us.ibm.com>
To: John Garry <john.garry@huawei.com>
Cc: will@kernel.org, mathieu.poirier@linaro.org, leo.yan@linaro.org,
	peterz@infradead.org, mingo@redhat.com, acme@kernel.org,
	mark.rutland@arm.com, alexander.shishkin@linux.intel.com,
	jolsa@redhat.com, namhyung@kernel.org, irogers@google.com,
	linuxarm@huawei.com, kjain@linux.ibm.com,
	kan.liang@linux.intel.com, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, zhangshaokun@hisilicon.com
Subject: RE: [PATCH v2 0/6] perf arm64 metricgroup support
Date: Fri, 26 Mar 2021 08:13:22 -0500	[thread overview]
Message-ID: <20210326131322.GE8931@li-24c3614c-2adc-11b2-a85c-85f334518bdb.ibm.com> (raw)
In-Reply-To: <dc17013d-2dcb-8ddf-a15a-e98cad3e2ae3@huawei.com>

On Fri, Mar 26, 2021 at 10:57:40AM +0000, John Garry wrote:
> On 25/03/2021 20:39, Paul A. Clarke wrote:
> > On Thu, Mar 25, 2021 at 06:33:12PM +0800, John Garry wrote:
> > > Metric reuse support is added for pmu-events parse metric testcase.
> > > This had been broken on power9 recentlty:
> > > https://lore.kernel.org/lkml/20210324015418.GC8931@li-24c3614c-2adc-11b2-a85c-85f334518bdb.ibm.com/
> > 
> > Much better.  Before:
> > --
> > $ perf test -v 10 2>&1 | grep -i error | wc -l
> > 112
> > --
> > After:
> > --
> > $ perf test -v 10 2>&1 | grep -i error | wc -l
> > 17
> > --
> > 
> > And these seem like different types of issues:
> > --
> > $ perf test -v 10 2>&1 | grep -i error
> > Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_powerbus0_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs01_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
> > Error string 'Cannot find PMU `nest_mcs23_imc'. Missing kernel support?' help '(null)'
> > --
> > 
> 
> This looks suspicious.
> 
> Firstly, does /sys/bus/event_source/devices/nest_mcs01_imc (or others,
> above) exist on your system? I guess not.
> 
> Secondly, checking Documentation/powerpc/imc.rst, we have examples of:
> nest_mcs01/PM_MCS01_64B_R...
> 
> So is the PMU name correct in the metric file for nest_mcs01_imc? Looking at
> the kernel driver file, arch/powerpc/perf/imc-pmu.c, it seems to be correct.
> Not sure.

This may be caused by me testing a new perf on an older kernel. Let me retest.

PC

  reply	other threads:[~2021-03-26 13:15 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-25 10:33 [PATCH v2 0/6] perf arm64 metricgroup support John Garry
2021-03-25 10:33 ` [PATCH v2 1/6] perf metricgroup: Make find_metric() public with name change John Garry
2021-04-01 23:16   ` Ian Rogers
2021-04-06  9:54     ` John Garry
2021-04-07  5:39       ` kajoljain
2021-03-25 10:33 ` [PATCH v2 2/6] perf test: Handle metric reuse in pmu-events parsing test John Garry
2021-04-01 13:49   ` Jiri Olsa
2021-04-06 11:00     ` John Garry
2021-04-06 12:17       ` Jiri Olsa
2021-04-06 12:43         ` John Garry
2021-04-06 12:55           ` Jiri Olsa
2021-04-06 13:21             ` John Garry
2021-04-06 13:34               ` Jiri Olsa
2021-04-06 13:38                 ` John Garry
2021-03-25 10:33 ` [PATCH v2 3/6] perf pmu: Add pmu_events_map__find() John Garry
2021-03-25 10:33 ` [PATCH v2 4/6] perf vendor events arm64: Add Hisi hip08 L1 metrics John Garry
2021-03-25 10:33 ` [PATCH v2 5/6] perf vendor events arm64: Add Hisi hip08 L2 metrics John Garry
2021-03-25 10:33 ` [PATCH v2 6/6] perf vendor events arm64: Add Hisi hip08 L3 metrics John Garry
2021-03-25 20:39 ` [PATCH v2 0/6] perf arm64 metricgroup support Paul A. Clarke
2021-03-26 10:57   ` John Garry
2021-03-26 13:13     ` Paul A. Clarke [this message]
2021-03-29 21:07     ` Paul A. Clarke
2021-03-30  6:41       ` kajoljain
2021-04-06 11:02         ` John Garry
2021-04-06 12:18           ` Paul A. Clarke
2021-04-07  6:03 ` kajoljain

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210326131322.GE8931@li-24c3614c-2adc-11b2-a85c-85f334518bdb.ibm.com \
    --to=pc@us.ibm.com \
    --cc=acme@kernel.org \
    --cc=alexander.shishkin@linux.intel.com \
    --cc=irogers@google.com \
    --cc=john.garry@huawei.com \
    --cc=jolsa@redhat.com \
    --cc=kan.liang@linux.intel.com \
    --cc=kjain@linux.ibm.com \
    --cc=leo.yan@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linuxarm@huawei.com \
    --cc=mark.rutland@arm.com \
    --cc=mathieu.poirier@linaro.org \
    --cc=mingo@redhat.com \
    --cc=namhyung@kernel.org \
    --cc=peterz@infradead.org \
    --cc=will@kernel.org \
    --cc=zhangshaokun@hisilicon.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).