From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <ffmpeg-devel-bounces@ffmpeg.org> Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTPS id 864374CB40 for <ffmpegdev@gitmailbox.com>; Thu, 13 Mar 2025 17:06:29 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 1688068E76A; Thu, 13 Mar 2025 19:04:16 +0200 (EET) Received: from vidala.pars.ee (vidala.pars.ee [116.203.72.101]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id E6F7068E56A for <ffmpeg-devel@ffmpeg.org>; Thu, 13 Mar 2025 19:03:58 +0200 (EET) DKIM-Signature: v=1; a=rsa-sha256; s=202405r; d=lynne.ee; c=relaxed/relaxed; h=Message-ID:Date:Subject:To:From; t=1741885438; bh=6plga3w1Phe64uqWvmUkdRr Ln5BKeHuOCVPA9+mTzug=; b=ku10KlIFm0nWQzhFdCWR5S+Uyi/CHADYAImOUEwZNg2ogzebfH 1IGGRM95mXUFCSIjeE/YUc0EJ6UDvS7++yMmXQUI5eECN2ZPSq4LNqPKE8yL/0ixtQ/vYDIITOz 33AA0AUwoAOSdafiSRX1KMEgqK9fODiOUjQM/DVYu7DT40pi6t5YvttJgFDjHcJyTBPYs8mWF/8 MLAbgRITAUbimzHkwJCxmfwQIw+StNdIdp2nuNThVmW9K3/Z4l9tcbtRINQWU9AgEiUhCnCsieR CtouU4HPuQcdNY2mlf+CcI+mDz7eXHhCbZJdXke9ywGHqw84ZwJpdtEGQLIOsxbu+Xg==; DKIM-Signature: v=1; a=ed25519-sha256; s=202405e; d=lynne.ee; c=relaxed/relaxed; h=Message-ID:Date:Subject:To:From; t=1741885438; bh=6plga3w1Phe64uqWvmUkdRr Ln5BKeHuOCVPA9+mTzug=; b=WP+69A+3YR5KTOUyN2kffoGtHxidTwi9ddt/eUYgngJF4Betr9 oPApNZPowGMHJb8jskivXKkwXHCebu3D79Aw==; From: Lynne <dev@lynne.ee> To: ffmpeg-devel@ffmpeg.org Date: Thu, 13 Mar 2025 18:03:41 +0100 Message-ID: <20250313170355.92290-10-dev@lynne.ee> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250313170355.92290-1-dev@lynne.ee> References: <20250313170355.92290-1-dev@lynne.ee> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH v4 09/16] vulkan_decode: adjust number of async contexts created X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches <ffmpeg-devel.ffmpeg.org> List-Unsubscribe: <https://ffmpeg.org/mailman/options/ffmpeg-devel>, <mailto:ffmpeg-devel-request@ffmpeg.org?subject=unsubscribe> List-Archive: <https://ffmpeg.org/pipermail/ffmpeg-devel> List-Post: <mailto:ffmpeg-devel@ffmpeg.org> List-Help: <mailto:ffmpeg-devel-request@ffmpeg.org?subject=help> List-Subscribe: <https://ffmpeg.org/mailman/listinfo/ffmpeg-devel>, <mailto:ffmpeg-devel-request@ffmpeg.org?subject=subscribe> Reply-To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org> Cc: Lynne <dev@lynne.ee> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" <ffmpeg-devel-bounces@ffmpeg.org> Archived-At: <https://master.gitmailbox.com/ffmpegdev/20250313170355.92290-10-dev@lynne.ee/> List-Archive: <https://master.gitmailbox.com/ffmpegdev/> List-Post: <mailto:ffmpegdev@gitmailbox.com> This caps the number of contexts we create based on thread count. This saves VRAM and filters out cases where more async is of lesser benefit. --- libavcodec/vulkan_decode.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/libavcodec/vulkan_decode.c b/libavcodec/vulkan_decode.c index 7f638d6fc6..cd77e10e12 100644 --- a/libavcodec/vulkan_decode.c +++ b/libavcodec/vulkan_decode.c @@ -1122,6 +1122,7 @@ int ff_vk_decode_init(AVCodecContext *avctx) FFVulkanDecodeShared *ctx; FFVulkanContext *s; FFVulkanFunctions *vk; + int async_depth; const VkVideoProfileInfoKHR *profile; const FFVulkanDecodeDescriptor *vk_desc; const VkPhysicalDeviceDriverProperties *driver_props; @@ -1191,9 +1192,14 @@ int ff_vk_decode_init(AVCodecContext *avctx) /* Create decode exec context for this specific main thread. * 2 async contexts per thread was experimentally determined to be optimal * for a majority of streams. */ + async_depth = 2*ctx->qf->num; + /* We don't need more than 2 per thread context */ + async_depth = FFMIN(async_depth, 2*avctx->thread_count); + /* Make sure there are enough async contexts for each thread */ + async_depth = FFMAX(async_depth, avctx->thread_count); + err = ff_vk_exec_pool_init(s, ctx->qf, &ctx->exec_pool, - FFMAX(2*ctx->qf->num, avctx->thread_count), - 0, 0, 0, profile); + async_depth, 0, 0, 0, profile); if (err < 0) goto fail; -- 2.47.2 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".