From: Kieran Kunhya via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Cc: Kieran Kunhya <kieran618@googlemail.com>
Subject: Re: [FFmpeg-devel] [PATCH v2 1/2] avfilter/vf_blackdetect: add AVX2 SIMD version
Date: Fri, 18 Jul 2025 13:14:12 +0100
Message-ID: <CABGuwEnr25LE3+Mq4ZuY9vmzQ+Enp77J23+3s3KQAdbbsMBVsw@mail.gmail.com> (raw)
In-Reply-To: <CABPLASSRQAWfrBNBXo3R6HzZkvq++HQ7b9DQnGbQFVnzOSgPZQ@mail.gmail.com>
> blackdetect8_c: 820.8 ( 1.00x)
> blackdetect8_avx2: 219.2 ( 3.74x)
> blackdetect16_c: 372.8 ( 1.00x)
> blackdetect16_avx2: 201.4 ( 1.85x)
>
> Again, sorry for being pedantic here, but it gives the wrong
> impression especially if you look at this from outside.
Also misleading as far as I understand because GCC doesn't have
runtime detection like FFmpeg.
Kieran
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next prev parent reply other threads:[~2025-07-18 12:14 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-17 10:45 Niklas Haas
2025-07-17 10:45 ` [FFmpeg-devel] [PATCH v2 2/2] tests/checkasm: add test for vf_blackdetect Niklas Haas
2025-07-18 11:35 ` [FFmpeg-devel] [PATCH v2 1/2] avfilter/vf_blackdetect: add AVX2 SIMD version Zhao Zhili
2025-07-18 11:36 ` Kacper Michajlow
2025-07-18 12:14 ` Kieran Kunhya via ffmpeg-devel [this message]
2025-07-18 12:28 ` Kacper Michajlow
2025-07-18 12:41 ` Kacper Michajlow
2025-07-18 12:46 ` Kieran Kunhya via ffmpeg-devel
2025-07-18 13:21 ` Kacper Michajlow
2025-07-18 13:33 ` Kieran Kunhya via ffmpeg-devel
2025-07-18 14:16 ` Kacper Michajlow
2025-07-18 14:36 ` Kieran Kunhya via ffmpeg-devel
2025-07-18 12:26 ` Zhao Zhili
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