| Date | Mon, 14 Sep 2020 12:13:10 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [RFC 00/26] perf: Add mmap3 support |
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Em Mon, Sep 14, 2020 at 02:25:25PM +0900, Namhyung Kim escreveu: > On Mon, Sep 14, 2020 at 6:03 AM Jiri Olsa <jolsa@kernel.org> wrote: > > while playing with perf daemon support I realized I need > > the build id data in mmap events, so we don't need to care > > about removed/updated binaries during long perf runs.
> > This RFC patchset adds new mmap3 events that copies mmap2 > > event and adds build id in it. It makes mmap3 the default > > mmap event for synthesizing kernel/modules/tasks and adds > > some tooling enhancements to enable the workflow below.
> Cool! It's nice that we can skip the final build-id collection stage > with this while data size will be bigger.
Yeah, this is something long overdue, comes with extra cost for people not wanting build-ids, but then they can just use MMAP2 or even MMAP if that is enough.
More comments on the other patches.
- Arnaldo
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