From: Lynne <dev@lynne.ee>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH 3/3] nlmeans_vulkan: parallelize workgroup invocations
Date: Wed, 11 Oct 2023 05:34:57 +0200 (CEST)
Message-ID: <NgRnJZm--3-9@lynne.ee> (raw)
In-Reply-To: <Ng9fYdg--3-9@lynne.ee-Ng9faxr----9>
Oct 7, 2023, 17:08 by dev@lynne.ee:
> Removes the clever subgroup parallel prefix computation,
> and instead just computes the prefix inline.
> Cuts down the number of dispatches by a huge amount.
>
> Provides a ~12x speedup (2.5fps to 30fps on a 7900XTX,
> 2.1fps to 24fps on an Ada).
>
> Patch attached.
>
Going to push the patchset a bit later today.
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prev parent reply other threads:[~2023-10-11 3:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-07 15:03 [FFmpeg-devel] [PATCH 1/3] nlmeans_vulkan: fix width/height for chroma plane weights calculation Lynne
[not found] ` <Ng9eVFH--3-9@lynne.ee-Ng9eZVQ----9>
2023-10-07 15:04 ` [FFmpeg-devel] [PATCH 2/3] nlmeans_vulkan: reduce dispatches by parallelizing the planes Lynne
2023-10-07 15:07 ` [FFmpeg-devel] [PATCH 3/3] nlmeans_vulkan: parallelize workgroup invocations Lynne
[not found] ` <Ng9fYdg--3-9@lynne.ee-Ng9faxr----9>
2023-10-11 3:34 ` Lynne [this message]
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