From: Namhyung Kim <namhyung@kernel.org>
To: linux-kernel@vger.kernel.org,
Arnaldo Carvalho de Melo <acme@kernel.org>,
linux-perf-users@vger.kernel.org, bpf@vger.kernel.org,
Gabriele Monaco <gmonaco@redhat.com>
Subject: Re: [PATCH 1/2] perf ftrace latency: variable histogram buckets
Date: Thu, 27 Feb 2025 08:50:26 -0800 [thread overview]
Message-ID: <174067502605.1401960.295346748722727301.b4-ty@kernel.org> (raw)
In-Reply-To: <20250207080446.77630-1-gmonaco@redhat.com>
On Fri, 07 Feb 2025 09:04:44 +0100, Gabriele Monaco wrote:
> The max-latency value can make the histogram smaller, but not larger, we
> have a maximum of 22 buckets and specifying a max-latency that would
> require more buckets has no effect.
>
> Dynamically allocate the buckets and compute the bucket number from the
> max latency as (max-min) / range + 2
>
> [...]
Applied to perf-tools-next, thanks!
Best regards,
Namhyung
prev parent reply other threads:[~2025-02-27 16:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-07 8:04 Gabriele Monaco
2025-02-07 8:04 ` [PATCH 2/2] perf ftrace latency: allow to hide empty buckets Gabriele Monaco
2025-02-27 16:50 ` Namhyung Kim [this message]
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