{"id":21603,"url":"https://patchwork.libcamera.org/api/covers/21603/?format=json","web_url":"https://patchwork.libcamera.org/cover/21603/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20241012124926.1049458-1-chenghaoyang@chromium.org>","date":"2024-10-12T12:47:56","name":"[v2,0/1] Add thread affinity","submitter":{"id":117,"url":"https://patchwork.libcamera.org/api/people/117/?format=json","name":"Cheng-Hao Yang","email":"chenghaoyang@chromium.org"},"mbox":"https://patchwork.libcamera.org/cover/21603/mbox/","series":[{"id":4690,"url":"https://patchwork.libcamera.org/api/series/4690/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=4690","date":"2024-10-12T12:47:56","name":"Add thread affinity","version":2,"mbox":"https://patchwork.libcamera.org/series/4690/mbox/"}],"comments":"https://patchwork.libcamera.org/api/covers/21603/comments/","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 3F9B4C326B\n\tfor ;\n\tSat, 12 Oct 2024 12:49:36 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 0200A6537A;\n\tSat, 12 Oct 2024 14:49:34 +0200 (CEST)","from mail-pf1-x436.google.com (mail-pf1-x436.google.com\n\t[IPv6:2607:f8b0:4864:20::436])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id CC33B618C3\n\tfor ;\n\tSat, 12 Oct 2024 14:49:32 +0200 (CEST)","by mail-pf1-x436.google.com with SMTP id\n\td2e1a72fcca58-71df04d3cd1so2494508b3a.2\n\tfor ;\n\tSat, 12 Oct 2024 05:49:32 -0700 (PDT)","from chenghaoyang-low.c.googlers.com.com\n\t(27.247.221.35.bc.googleusercontent.com. [35.221.247.27])\n\tby smtp.gmail.com with ESMTPSA id\n\td2e1a72fcca58-71e2aa937cesm4074222b3a.132.2024.10.12.05.49.29\n\t(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n\tSat, 12 Oct 2024 05:49:30 -0700 (PDT)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=chromium.org header.i=@chromium.org\n\theader.b=\"NnJftfLl\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=chromium.org; s=google; t=1728737371; x=1729342171;\n\tdarn=lists.libcamera.org; \n\th=content-transfer-encoding:mime-version:message-id:date:subject:cc\n\t:to:from:from:to:cc:subject:date:message-id:reply-to;\n\tbh=mDnxKM/oDewovNgW2+5sBeZz2XNG4TEnj8CXyYtXYdw=;\n\tb=NnJftfLlZPQ+dzWYtjxUUzmlC3dsZog07mYSlGX+ERn7vpcZAjlvZ/Gasog23qcU24\n\thmYhW2PxFXltQgB/gtTHHLkFnF1iPDwG0q6rYV1bwHkvaYmtBaQi/lwA2vY0j6TlTchl\n\tzwClQMYxUaEkGNwclMpO3iezGU+5JCCUNBkx4=","X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20230601; t=1728737371; x=1729342171;\n\th=content-transfer-encoding:mime-version:message-id:date:subject:cc\n\t:to:from:x-gm-message-state:from:to:cc:subject:date:message-id\n\t:reply-to;\n\tbh=mDnxKM/oDewovNgW2+5sBeZz2XNG4TEnj8CXyYtXYdw=;\n\tb=YNI675mZwMn16JUJsaQw/hvGPLnvCrB8XMxwpEL5g0de3oDbs1bG60dSL+wyChya1N\n\tjalO8S4Fwt9khQaMoPzOO9IkXiERId/LO3gWW3obeDR3yzDZPC+jeyrPCduJ/K+6dkgZ\n\tzjTfGMh4kXnpN6JizsmFgQ3D1KnXi7IKHhQBZC5itwFyZOxAwIZjpaizhQfaAcKaGWkB\n\tX6kf2S5tQheXJYZWLCmog3SpweFspQ75JGpZLoncnkiD0DwyB15VjQltcHXD2XDNS2kz\n\thAzergJXyanHwVmHZ1z9Hasiy7lDhMpv71J6xwsnRAOzql0yAPk7RArKa4Vwe+PEmgvl\n\toSEw==","X-Gm-Message-State":"AOJu0YxVnnzkChfkXrc8yxRFMoExYtIHCWqdCcB17vu1jD+TG6Ypg1aQ\n\tynXPvVIrFJn4vuO9AQquy24ntQl/rqkk8NdPF47ePirUiUcfTDcODR2ejuW2h7v/z57AC7dX/P4\n\t=","X-Google-Smtp-Source":"AGHT+IHrB/uUhgxWRghNDHCJtjMXOecIt+WIlbtrxdUCREVYO0l00uui/S0IZcTzkDOpWjFwRs7aVQ==","X-Received":"by 2002:a05:6a00:1250:b0:71e:fb4:6c98 with SMTP id\n\td2e1a72fcca58-71e4c1cfc05mr4921704b3a.23.1728737370964; \n\tSat, 12 Oct 2024 05:49:30 -0700 (PDT)","From":"Harvey Yang ","To":"libcamera-devel@lists.libcamera.org","Cc":"Harvey Yang ","Subject":"[PATCH v2 0/1] Add thread affinity","Date":"Sat, 12 Oct 2024 12:47:56 +0000","Message-ID":"<20241012124926.1049458-1-chenghaoyang@chromium.org>","X-Mailer":"git-send-email 2.47.0.rc1.288.g06298d1525-goog","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"Hi folks,\n\nThis patch adds a method to set thread affinity, which is needed to\nensure performance in mtkisp7 pipeline handler and IPA.\n\nThis passes gitlab pipeline:\nhttps://gitlab.freedesktop.org/chenghaoyang/libcamera/-/pipelines/1288675\n\nv2:\n- Check cpu indices within [0, `std::thread::hardware_concurrency()`).\n- Limit max size of cpus to be CPU_SETSIZE.\n\nBR,\nHarvey\n\nHan-Lin Chen (1):\n libcamera: add method to set thread affinity\n\n include/libcamera/base/thread.h | 6 +++++\n src/libcamera/base/thread.cpp | 47 +++++++++++++++++++++++++++++++++\n 2 files changed, 53 insertions(+)"}