From: Shreesh Adiga <16567adigashreesh@gmail.com>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH] swscale/x86/rgb2rgb: add AVX512ICL versions of shuffle_bytes
Date: Sat, 25 Jan 2025 21:20:50 +0530
Message-ID: <CA+-x59bmT7p39fYPN_yQzYiYenPXZK4MTM938FPGxuHZHqYctQ@mail.gmail.com> (raw)
In-Reply-To: <d55ef1d6-e3e6-4e52-b179-b1f8b3f1088c@gmail.com>
> Try running it several times using the same seed, so
> "tests/checkasm/checkasm --test=sw_rgb --bench 17575157", and make sure
> no power saving feature is enabled (so the CPU frequency doesn't change
> based on load). That may help getting consistent results.
After running "echo performance | tee
/sys/devices/system/cpu/cpu*/cpufreq/scaling_governor" and
recompiling ffmpeg with "--enable-linux-perf", I am seeing the below
numbers:
shuffle_bytes_0321_c: 56.5 ( 1.00x)
shuffle_bytes_0321_ssse3: 18.0 ( 3.14x)
shuffle_bytes_0321_avx2: 10.0 ( 5.65x)
shuffle_bytes_0321_avx512icl: 9.0 ( 6.28x)
shuffle_bytes_1230_c: 84.5 ( 1.00x)
shuffle_bytes_1230_ssse3: 18.2 ( 4.63x)
shuffle_bytes_1230_avx2: 22.2 ( 3.80x)
shuffle_bytes_1230_avx512icl: 10.0 ( 8.45x)
shuffle_bytes_2103_c: 49.8 ( 1.00x)
shuffle_bytes_2103_ssse3: 21.2 ( 2.34x)
shuffle_bytes_2103_avx2: 17.5 ( 2.84x)
shuffle_bytes_2103_avx512icl: 7.5 ( 6.63x)
shuffle_bytes_3012_c: 84.5 ( 1.00x)
shuffle_bytes_3012_ssse3: 17.0 ( 4.97x)
shuffle_bytes_3012_avx2: 16.0 ( 5.28x)
shuffle_bytes_3012_avx512icl: 16.2 ( 5.20x)
shuffle_bytes_3210_c: 92.8 ( 1.00x)
shuffle_bytes_3210_ssse3: 25.8 ( 3.60x)
shuffle_bytes_3210_avx2: 14.0 ( 6.62x)
shuffle_bytes_3210_avx512icl: 9.0 (10.31x)
Thanks,
Shreesh
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next prev parent reply other threads:[~2025-01-25 15:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-25 14:25 Shreesh Adiga
2025-01-25 14:33 ` James Almer
2025-01-25 15:11 ` Shreesh Adiga
2025-01-25 15:39 ` James Almer
2025-01-25 15:50 ` Shreesh Adiga [this message]
2025-01-25 16:17 ` James Almer
2025-01-25 22:27 ` Ronald S. Bultje
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