From: Cesar Matheus <cesar.matheus@telecom-paris.fr>
To: ffmpeg-devel@ffmpeg.org
Subject: [FFmpeg-devel] [BASIC QUESTION] Profiling tool for ffmpeg
Date: Mon, 24 Feb 2025 15:43:25 +0100 (CET)
Message-ID: <577271964.20142847.1740408205310.JavaMail.zimbra@telecom-paris.fr> (raw)
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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next reply other threads:[~2025-02-24 14:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-24 14:43 Cesar Matheus [this message]
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
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