From: Leandro Santiago <leandrosansilva@gmail.com>
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] [BASIC QUESTION] Profiling tool for ffmpeg
Date: Thu, 27 Feb 2025 17:52:16 +0100
Message-ID: <27492e98-e114-4d82-a65b-e37a0acd5b03@gmail.com> (raw)
In-Reply-To: <577271964.20142847.1740408205310.JavaMail.zimbra@telecom-paris.fr>
I've been using Hotspot, a Qt based GUI for Linux perf, and am quite happy with the results: https://github.com/KDAB/hotspot
Valgrind massif, callgrind and cachegrind also have some GUIs for Linux (massif-visualizer and Kcachegrind).
Cheers,
Leandro
On 2/24/25 15:43, Cesar Matheus wrote:
> Hi, I'm a CS student working on an optimisation of the ebur128 filter. First I'm looking for the nicest way to get information on code performance.
> I saw that the configuration flag "--enable-linux-perf" enables Linux Performance Monitor API, I've been using the perf tool with the following commands for example :
>
> ./perf record -F 99 -a -g --call-graph dwarf ./ffmpeg -i test.wav -vn -af loudnorm=print_format=summary:dual_mono=true -f null /dev/null
>
> but I'm not quite satisfate with the result.
>
> Do you have any advice on how to properly extract informations such as execution time, function call graph etc.. in such a case using profiling tool (perf or gprof for example ?
>
> Thank you very much,
> César Mathéus
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prev parent reply other threads:[~2025-02-27 16:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-24 14:43 Cesar Matheus
2025-02-24 14:44 ` Kieran Kunhya via ffmpeg-devel
2025-02-24 14:53 ` Devin Heitmueller
2025-02-24 17:03 ` Stone Chen
2025-02-27 16:52 ` Leandro Santiago [this message]
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