From: Kieran Kunhya <kierank@obe.tv>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH] libavcodec/h264pred: Remove pred8x8_horizontal_8_mmxext
Date: Sat, 2 Mar 2024 21:37:24 +0000
Message-ID: <CAK+ULv5=e=DS9eOORem9DFeREuQ8SD9namgxi_DmVGJC8ydFQA@mail.gmail.com> (raw)
In-Reply-To: <AS8P250MB0744F3A24F613387529CDC8C8F5D2@AS8P250MB0744.EURP250.PROD.OUTLOOK.COM>
On Sat, 2 Mar 2024 at 21:18, Andreas Rheinhardt <
andreas.rheinhardt@outlook.com> wrote:
> Kieran Kunhya:
> > $subj
> >
> > Old:
> > pred8x8_horizontal_8_c: 6.8
> > pred8x8_horizontal_8_mmxext: 8.6
> > pred8x8_horizontal_8_ssse3: 4.8
> >
> > New:
> > pred8x8_horizontal_8_c: 9.2
> > pred8x8_horizontal_8_sse2: 12.2
> > pred8x8_horizontal_8_ssse3: 4.9
> >
>
> You do realize that the SSE2 version is worse than the mmxext version?
> In fact, worse than the C version. Given that both the mmxext and sse2
> versions are worse than C, there is no point in having the mmxext one at
> all and no need for an SSE2 replacement.
>
> - Andreas
>
On my machine, others may have different speeds.
Kieran
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next prev parent reply other threads:[~2024-03-02 21:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-02 21:12 Kieran Kunhya
2024-03-02 21:20 ` Andreas Rheinhardt
2024-03-02 21:31 ` James Almer
2024-03-02 21:37 ` Kieran Kunhya [this message]
2024-03-02 23:31 ` Henrik Gramner via ffmpeg-devel
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