linux-kernel - Re: [PATCH v5 1/8] perf record ibs: Warn about sampling period skew

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Date:   Fri, 3 Jun 2022 21:25:46 +0200
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ravi Bangoria <ravi.bangoria@....com>
Cc:     namhyung@...nel.org, kan.liang@...ux.intel.com, jolsa@...nel.org,
        irogers@...gle.com, peterz@...radead.org, rrichter@....com,
        mingo@...hat.com, mark.rutland@....com, tglx@...utronix.de,
        bp@...en8.de, james.clark@....com, leo.yan@...aro.org,
        ak@...ux.intel.com, eranian@...gle.com, like.xu.linux@...il.com,
        x86@...nel.org, linux-perf-users@...r.kernel.org,
        linux-kernel@...r.kernel.org, sandipan.das@....com,
        ananth.narayan@....com, kim.phillips@....com,
        santosh.shukla@....com
Subject: Re: [PATCH v5 1/8] perf record ibs: Warn about sampling period skew

Em Fri, Jun 03, 2022 at 10:58:13AM +0530, Ravi Bangoria escreveu:
> On 03-Jun-22 10:42 AM, Ravi Bangoria wrote:
> >>> +       if (ibs_fetch_pmu && ibs_fetch_pmu->type == evsel_pmu->type) {
> >>> +               if (attr->config & (1ULL << 59)) {
> >>
> >> It'd be nice if we used a macro or something instead of the
> >> magic number.
> >>
> >>> +                       ibs_l3miss_warn();
> >>> +                       warned_once = 1;
> >>> +               }
> >>> +       } else if (ibs_op_pmu && ibs_op_pmu->type == evsel_pmu->type) {
> >>> +               if (attr->config & (1ULL << 16)) {
> >>
> >> Ditto.
> > 
> > Thanks for the review, Namhyung.
> > 
> > Arnaldo, Would you be able to squash below trivial patch into original
> > patch? Please let me know if you want me to respin the series instead.
> 
> I'm planning to respin with asprintf() change. Sorry for the noise.

Ok, will wait for the respin then.

- Arnaldo