From: Paul B Mahol <onemda@gmail.com>
To: FFmpeg development discussions and patches <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 20:40:12 +0200
Message-ID: <CAPYw7P5y5DMWnMo9co3HBTDbfoXX5Cxxs_K5y08BWBdbV2wo8w@mail.gmail.com> (raw)
In-Reply-To: <565252472.pzULxxR07M@basile.remlab.net>
On Tue, Sep 26, 2023 at 8:35 PM Rémi Denis-Courmont <remi@remlab.net> wrote:
> 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.
>
What you mean exactly that C version is missing?
>
> 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 18:40 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
2023-09-26 18:40 ` Paul B Mahol [this message]
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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