From: Ian Rogers <irogers@google.com>
To: Namhyung Kim <namhyung@kernel.org>,
Jin Yao <yao.jin@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
Jiri Olsa <jolsa@redhat.com>, Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Stephane Eranian <eranian@google.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCHSET v2 00/11] perf tools: Fix various memory leaks
Date: Mon, 14 Sep 2020 22:15:11 -0700 [thread overview]
Message-ID: <CAP-5=fXejVaQa9qfW66cY77qB962+jbe8tT5bsLoOOcFmODnWQ@mail.gmail.com> (raw)
In-Reply-To: <20200915031819.386559-1-namhyung@kernel.org>
On Mon, Sep 14, 2020 at 8:18 PM Namhyung Kim <namhyung@kernel.org> wrote:
>
> Hello,
>
> I've found and fixed a bunch of memory leaks during perf pmu and
> metric tests with address sanitizer. Before this, the tests were
> mostly failed due to the leaks since ASAN makes it return non-zero.
>
> Now I'm seeing no error with ASAN like below:
>
> $ ./perf test pmu metric
> 9: Parse perf pmu format : Ok
> 10: PMU events :
> 10.1: PMU event table sanity : Ok
> 10.2: PMU event map aliases : Ok
> 10.3: Parsing of PMU event table metrics : Skip (some metrics failed)
> 10.4: Parsing of PMU event table metrics with fake PMUs : Ok
> 67: Parse and process metrics : Ok
>
> The failure in 10.3 seems due to parse errors like below:
>
> Multiple errors dropping message: unknown term 'filter_opc' for pmu 'uncore_cbox_0'
> (valid terms: event,edge,inv,umask,cmask,config,config1,config2,name,period,freq,
> branch_type,time,call-graph,stack-size,no-inherit,inherit,max-stack,
> nr,no-overwrite,overwrite,driver-config,percore,aux-output,aux-sample-size)
>
>
> Parse event failed metric 'DRAM_Parallel_Reads' id 'arb/event=0x80,umask=0x2,thresh=1/'
> expr 'arb@event\=0x80\,umask\=0x2@ / arb@event\=0x80\,umask\=0x2\,thresh\=1@'
> Error string 'unknown term 'thresh' for pmu 'uncore_arb'' help
> 'valid terms: event,edge,inv,umask,cmask,config,config1,config2,name,period,freq,
> branch_type,time,call-graph,stack-size,no-inherit,inherit,max-stack,
> nr,no-overwrite,overwrite,driver-config,percore,aux-output,aux-sample-size'
The 10.3 failure seems to be a problem in the skl metric DRAM_Parallel_Reads:
https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/tree/tools/perf/pmu-events/arch/x86/skylake/skl-metrics.json?h=perf/core#n319
arb@event\\=0x80\\,umask\\=0x2@ / arb@event\\=0x80\\,umask\\=0x2\\,thresh\\=1@
The test failure message is:
Parse event failed metric 'DRAM_Parallel_Reads' id
'arb/event=0x80,umask=0x2,thresh=1/' expr
'arb@event\=0x80\,umask\=0x2@ /
arb@event\=0x80\,umask\=0x2\,thresh\=1@'
Error string 'unknown term 'thresh' for pmu 'uncore_arb'' help 'valid
terms: event,edge,inv,umask,cmask,config,config1,config2,name,period,freq,branch_type,time,call-graph,stack-size,no-inherit,inherit,max-stack,nr,no-overwrite,overwrite,driver-config,percore,aux-output,aux-sample-size'
The 01.org version of this from:
https://download.01.org/perfmon/TMA_Metrics.xlsx
is:
UNC_ARB_TRK_OCCUPANCY.DATA_READ / UNC_ARB_TRK_OCCUPANCY.DATA_READ:c1
It seems that :c1 has been translated into thresh=1 but that thresh
doesn't exist as a format option (just "cmask edge event inv umask"
are present). I wonder if Andi or Jin you could look into this broken
metric?
Thanks,
Ian
> * Changes from v1:
> - Add 'Acked-by: Jiri'
>
>
> The patches are also available at 'perf/metric-fix-v2' branch on
>
> git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git
>
> Thanks
> Namhyung
>
>
> Namhyung Kim (11):
> perf metric: Fix some memory leaks
> perf metric: Fix some memory leaks - part 2
> perf evlist: Fix cpu/thread map leak
> perf parse-event: Fix cpu map leaks
> perf parse-event: Fix memory leak in evsel->unit
> perf test: Fix memory leaks in parse-metric test
> perf metric: Release expr_parse_ctx after testing
> perf metric: Free metric when it failed to resolve
> perf metric: Do not free metric when failed to resolve
> perf test: Free aliases for PMU event map aliases test
> perf test: Free formats for perf pmu parse test
>
> tools/perf/tests/parse-metric.c | 14 ++++++++-----
> tools/perf/tests/pmu-events.c | 5 +++++
> tools/perf/tests/pmu.c | 1 +
> tools/perf/util/evlist.c | 11 ++++++++---
> tools/perf/util/metricgroup.c | 35 +++++++++++++++++++++++----------
> tools/perf/util/parse-events.c | 9 +++++++--
> tools/perf/util/pmu.c | 13 +++++++++++-
> tools/perf/util/pmu.h | 2 ++
> tools/perf/util/stat-shadow.c | 8 +++++---
> 9 files changed, 74 insertions(+), 24 deletions(-)
>
> --
> 2.28.0.618.gf4bc123cb7-goog
>
next prev parent reply other threads:[~2020-09-15 5:15 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-15 3:18 [PATCHSET v2 00/11] perf tools: Fix various memory leaks Namhyung Kim
2020-09-15 3:18 ` [PATCH 01/11] perf metric: Fix some " Namhyung Kim
2020-09-15 11:58 ` Arnaldo Carvalho de Melo
2020-09-15 3:18 ` [PATCH 02/11] perf metric: Fix some memory leaks - part 2 Namhyung Kim
2020-09-15 11:59 ` Arnaldo Carvalho de Melo
2020-09-15 3:18 ` [PATCH 03/11] perf evlist: Fix cpu/thread map leak Namhyung Kim
2020-09-15 3:18 ` [PATCH 04/11] perf parse-event: Fix cpu map leaks Namhyung Kim
2020-09-15 12:18 ` Arnaldo Carvalho de Melo
2020-09-15 14:39 ` Namhyung Kim
2020-09-15 16:51 ` Arnaldo Carvalho de Melo
2020-09-15 3:18 ` [PATCH 05/11] perf parse-event: Fix memory leak in evsel->unit Namhyung Kim
2020-09-15 12:19 ` Arnaldo Carvalho de Melo
2020-09-15 18:59 ` Ian Rogers
2020-09-15 19:56 ` David Malcolm
2020-09-16 7:12 ` Namhyung Kim
2020-09-16 18:37 ` Ian Rogers
2020-09-15 20:03 ` Arnaldo Carvalho de Melo
2020-09-15 3:18 ` [PATCH 06/11] perf test: Fix memory leaks in parse-metric test Namhyung Kim
2020-09-15 12:23 ` Arnaldo Carvalho de Melo
2020-09-15 3:18 ` [PATCH 07/11] perf metric: Release expr_parse_ctx after testing Namhyung Kim
2020-09-15 3:18 ` [PATCH 08/11] perf metric: Free metric when it failed to resolve Namhyung Kim
2020-09-15 12:24 ` Arnaldo Carvalho de Melo
2020-09-15 3:18 ` [PATCH 09/11] perf metric: Do not free metric when " Namhyung Kim
2020-09-15 3:18 ` [PATCH 10/11] perf test: Free aliases for PMU event map aliases test Namhyung Kim
2020-09-15 7:37 ` John Garry
2020-09-15 11:57 ` Arnaldo Carvalho de Melo
2020-09-15 3:18 ` [PATCH 11/11] perf test: Free formats for perf pmu parse test Namhyung Kim
2020-09-15 5:15 ` Ian Rogers [this message]
2020-09-15 14:49 ` [PATCHSET v2 00/11] perf tools: Fix various memory leaks Namhyung Kim
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