From: Jerome Martinez <jerome@mediaarea.net>
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] [PATCH] vulkan: use a single command buffer per command buffer pool
Date: Thu, 17 Apr 2025 10:11:15 +0200
Message-ID: <ef9355d1-41d2-410f-8cab-ee196370eddb@mediaarea.net> (raw)
In-Reply-To: <20250416132612.19085-1-dev@lynne.ee>
Le 16/04/2025 à 15:26, Lynne a écrit :
> We violated the spec, which, despite the actual command buffer pool
> *not* being involved in any functions which require external synchronization
> of the pool, *require* external synchronization even if only the
> command buffers are used.
>
> This also has the effect of *significantly* speeding up execution
> in case command buffers are contended.
I can confirm a +6% on 16-bit content on a RTX 4070 Ti.
With a 2K 16-slice content:
- It was freezing after ~300 frames on a RTX 4070 Ti, now it runs slowly
but smoothly,
- The UI was frozen on a RTX 3050, still some kind of freeze with this
patch but it is better (especially with -thread 1)
no regression found.
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prev parent reply other threads:[~2025-04-17 8:11 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-16 13:26 Lynne
2025-04-17 8:11 ` Jerome Martinez [this message]
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