linux-kernel - Re: [PATCH 4/9] perf record: Record dropped sample count

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Message-ID: <CAM9d7citrt7tLF6VkjmBSnM2vCB8vjEqcYcrycZT_R66XNwkyg@mail.gmail.com>
Date:   Tue, 14 Mar 2023 15:18:17 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Song Liu <song@...nel.org>,
        Stephane Eranian <eranian@...gle.com>,
        Ravi Bangoria <ravi.bangoria@....com>,
        Leo Yan <leo.yan@...aro.org>,
        James Clark <james.clark@....com>, Hao Luo <haoluo@...gle.com>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-perf-users@...r.kernel.org, bpf@...r.kernel.org
Subject: Re: [PATCH 4/9] perf record: Record dropped sample count

On Tue, Mar 14, 2023 at 2:42 PM Arnaldo Carvalho de Melo
<acme@...nel.org> wrote:
>
> Em Tue, Mar 07, 2023 at 03:33:04PM -0800, Namhyung Kim escreveu:
> > When it uses bpf filters, event might drop some samples.  It'd be nice
> > if it can report how many samples it lost.  As LOST_SAMPLES event can
> > carry the similar information, let's use it for bpf filters.
> >
> > To indicate it's from BPF filters, add a new misc flag for that and
> > do not display cpu load warnings.
>
> This one isn't applying, can you please refresh on top of
> acme/tmp.perf-tools-next ?

Sure, I'll send v5 with documentation update.

Thanks,
Namhyung