From: Connor Worley <connorbworley@gmail.com>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH 2/2] lavc/dxvenc: migrate DXT1 encoder to lavu hashtable
Date: Mon, 5 Feb 2024 11:57:01 -0800
Message-ID: <CAN7ZixzuPSZxcrd2xKGy18AzqhZkd_YzeHZbdnbfBgz-H1r2aQ@mail.gmail.com> (raw)
In-Reply-To: <AS8P250MB0744691B28DAC236EFA4D6B08F472@AS8P250MB0744.EURP250.PROD.OUTLOOK.COM>
>
> How much would one gain if the hash function knew that key_size and
> val_size are four?
>
That yields a nice 10-20% speedup on my machine. Are you thinking of macros
to parametrize key/val size, or possibly optimized versions for common
sizes?
--
Connor Worley
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next prev parent reply other threads:[~2024-02-05 19:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-05 5:27 [FFmpeg-devel] [PATCH 1/2] lavu/hashtable: create generic robin hood hash table Connor Worley
2024-02-05 5:27 ` [FFmpeg-devel] [PATCH 2/2] lavc/dxvenc: migrate DXT1 encoder to lavu hashtable Connor Worley
2024-02-05 12:04 ` Andreas Rheinhardt
2024-02-05 19:57 ` Connor Worley [this message]
2024-02-05 20:08 ` Andreas Rheinhardt
2024-02-05 20:46 ` Connor Worley
2024-02-05 12:00 ` [FFmpeg-devel] [PATCH 1/2] lavu/hashtable: create generic robin hood hash table Andreas Rheinhardt
2024-02-06 5:00 ` Connor Worley
2024-02-06 10:13 ` Connor Worley
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