linux-kernel - Re: [PATCH v3 0/2] Introduce perf-stat -b for BPF programs

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Date:   Wed, 9 Dec 2020 23:30:52 +0000
From:   Song Liu <songliubraving@...com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
CC:     lkml <linux-kernel@...r.kernel.org>,
        Kernel Team <Kernel-team@...com>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "alexander.shishkin@...ux.intel.com" 
        <alexander.shishkin@...ux.intel.com>,
        "jolsa@...hat.com" <jolsa@...hat.com>,
        "namhyung@...nel.org" <namhyung@...nel.org>
Subject: Re: [PATCH v3 0/2] Introduce perf-stat -b for BPF programs



> On Dec 9, 2020, at 9:36 AM, Arnaldo Carvalho de Melo <acme@...nel.org> wrote:
> 
> Em Tue, Dec 08, 2020 at 10:16:44AM -0800, Song Liu escreveu:
>> This set introduces perf-stat -b option to count events for BPF programs.
>> This is similar to bpftool-prog-profile. But perf-stat makes it much more
>> flexible.
>> 
>> Changes v2 => v3:
>>  1. Small fixes in Makefile.perf and bpf_counter.c (Jiri)
>>  2. Rebased on top of bpf-next. This is because 1/2 conflicts with some
>>     patches in bpftool/Makefile.
> 
> Can't you split that up so that I can process the perf part and the
> bpftool goes via the bpf-next tree?

Actually, I can make it conflict-less, so we can route everything together.
I also put the change to bpftool/Makefile in a separate patch in v4. 

Thanks,
Song