From: "Rémi Denis-Courmont" <remi@remlab.net>
To: ffmpeg-devel@ffmpeg.org
Cc: flow gg <hlefthleft@gmail.com>
Subject: Re: [FFmpeg-devel] [PATCH] af_afir: RISC-V V fcmul_add
Date: Tue, 26 Sep 2023 21:34:58 +0300
Message-ID: <565252472.pzULxxR07M@basile.remlab.net> (raw)
In-Reply-To: <CAEa-L+u=vAHtbUBDMZE14MyUMOKkUpU5NyxkSNxBKNVwgzXswg@mail.gmail.com>
Le tiistaina 26. syyskuuta 2023, 12.24.58 EEST flow gg a écrit :
> benchmark:
> fcmul_add_c: 19.7
> fcmul_add_rvv_f32: 6.7
Nit: please pad mnemonics to at least 8 columns for consistency.
I'm a bit surprised that the performance improves this much, considering that
the C910 is notoriously bad at both segmented strided loads. It might be that
the C versions is just very bad due to lack of aliasing optimisations. Oh
well.
Note that you could do the double versions with very little extra efforts.
--
雷米‧德尼-库尔蒙
http://www.remlab.net/
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next prev parent reply other threads:[~2023-09-26 18:35 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-26 9:24 flow gg
2023-09-26 18:34 ` Rémi Denis-Courmont [this message]
2023-09-26 18:40 ` Paul B Mahol
2023-09-26 18:44 ` Rémi Denis-Courmont
2023-09-27 1:47 ` flow gg
2023-09-27 16:01 ` Rémi Denis-Courmont
2023-09-27 16:27 ` Rémi Denis-Courmont
2023-09-26 18:50 ` Rémi Denis-Courmont
2023-09-27 16:41 ` Rémi Denis-Courmont
2023-09-28 5:45 ` flow gg
2023-09-28 13:33 ` Rémi Denis-Courmont
2023-11-13 9:43 ` flow gg
2023-11-13 15:35 ` Rémi Denis-Courmont
2023-11-13 16:01 ` Paul B Mahol
2023-11-15 8:57 ` flow gg
2023-11-15 8:59 ` flow gg
2023-11-15 15:05 ` Rémi Denis-Courmont
2023-11-15 23:04 ` flow gg
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