From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] [PATCH] libavcodec/h264pred: Remove pred8x8_horizontal_8_mmxext
Date: Sat, 2 Mar 2024 22:20:41 +0100
Message-ID: <AS8P250MB0744F3A24F613387529CDC8C8F5D2@AS8P250MB0744.EURP250.PROD.OUTLOOK.COM> (raw)
In-Reply-To: <CAK+ULv6ZpQMBsVNEgrNBrc5Pv=SYdgnjBiJeCYEBZGOHXpEEeg@mail.gmail.com>
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
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next prev parent reply other threads:[~2024-03-02 21:18 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 [this message]
2024-03-02 21:31 ` James Almer
2024-03-02 21:37 ` Kieran Kunhya
2024-03-02 23:31 ` Henrik Gramner via ffmpeg-devel
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