linux-kernel - Re: [PATCH v2 0/4] Hybrid event parsing fixes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Thu, 1 Jun 2023 14:39:02 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     "Liang, Kan" <kan.liang@...ux.intel.com>
Cc:     Ian Rogers <irogers@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Rob Herring <robh@...nel.org>,
        Ravi Bangoria <ravi.bangoria@....com>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        Thomas Richter <tmricht@...ux.ibm.com>
Subject: Re: [PATCH v2 0/4] Hybrid event parsing fixes

Em Thu, Jun 01, 2023 at 09:59:20AM -0400, Liang, Kan escreveu:
> 
> 
> On 2023-06-01 4:29 a.m., Ian Rogers wrote:
> > Correct various issues that have come up in mailing list discussions,
> > the most impactful of which is the wildcard opening of events of type
> > PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE. But also try to avoid a
> > parse-error without a warning, have more fall-back behaviors and be
> > liberal with the definition of software events.
> > 
> > The majority of the change is in correcting the parse-event test to
> > match the new hybrid parsing.
> > 
> > Ian Rogers (4):
> >   perf pmu: Correct perf_pmu__auto_merge_stats affecting hybrid
> >   perf evsel: Add verbose 3 print of evsel name when opening
> >   perf parse-events: Wildcard most "numeric" events
> >   perf test: Update parse-events expectations
> 
> The patch set fixes the issues I found on a hybrid machine.
> 
> Tested-by: Kan Liang <kan.liang@...ux.intel.com>

Thanks, applied.

- Arnaldo

 
> It's better to fold the examples (especially for the patch 1) in the
> description. So we can understand what's it trying to fix and what's the
> expected result now.
> 
> Thanks,
> Kan
> 
> > 
> >  tools/perf/tests/parse-events.c | 1108 ++++++++++++++++---------------
> >  tools/perf/util/evsel.c         |    1 +
> >  tools/perf/util/parse-events.c  |  104 ++-
> >  tools/perf/util/parse-events.y  |   10 +-
> >  tools/perf/util/pmu.c           |   18 +-
> >  tools/perf/util/pmu.h           |    5 +
> >  tools/perf/util/pmus.c          |    5 +
> >  tools/perf/util/pmus.h          |    1 +
> >  8 files changed, 698 insertions(+), 554 deletions(-)
> > 

-- 

- Arnaldo