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Date:   Mon, 27 Nov 2023 19:00:06 -0300
From:   Arnaldo Carvalho de Melo <acme@kernel.org>
To:     Ian Rogers <irogers@google.com>
Cc:     Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>,
        Mark Rutland <mark.rutland@arm.com>,
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Subject: Re: [PATCH v4 04/53] perf mmap: Lazily initialize zstd streams
Message-ID: <ZWURZvDA2L4Mr3HR@kernel.org>
References: <20231102175735.2272696-1-irogers@google.com>
 <20231102175735.2272696-5-irogers@google.com>
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Em Thu, Nov 02, 2023 at 10:56:46AM -0700, Ian Rogers escreveu:
> Zstd streams create dictionaries that can require significant RAM,
> especially when there is one per-CPU. Tools like perf record won't use
> the streams without the -z option, and so the creation of the streams
> is pure overhead. Switch to creating the streams on first use.
> 
> Signed-off-by: Ian Rogers <irogers@google.com>

Thanks, applied to perf-tools-next.

- Arnaldo