From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f173.google.com (mail-pl1-f173.google.com [209.85.214.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 39E481AE021 for ; Fri, 2 Aug 2024 17:57:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722621477; cv=none; b=Mg/pGh9gaMRQcL3gw6joizxsoEUQQfWbVBvDko8e+v+ESQYDPXveOu4T+HxgZFSJkswrReouZi2qeecEp20Ercq0HHUmxOtxBE8UD5CUejKFcsgOEqUU+busGtrXdWbJ3lM56NkuvUcaeVl5JRMAm6f6DIjZDFLFuEwCtoUlOYE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722621477; c=relaxed/simple; bh=Ke/p5Rf+xv0YTdEcPr+ksjhoaSabRGdDrA29XLJaXio=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=IRmpIXbh+xQAM+yOfn97bNomoiwg6rIvZsToZWGGxhfwv4Eu87olmzxBBVjIJT85jXPR2r8UhgYGRk425f+QknxFfAf2sm+u6dVWXNqmO6uCbic0piAgPlSvUIvGLE/LBNUH6cbY1HfvknzQJE5+Xq/ZTXQTKsqe1pILlSxJe/4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=kJWRGauX; arc=none smtp.client-ip=209.85.214.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="kJWRGauX" Received: by mail-pl1-f173.google.com with SMTP id d9443c01a7336-1fd66cddd07so64231335ad.2 for ; Fri, 02 Aug 2024 10:57:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1722621475; x=1723226275; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=4qWeLbFqoedEXg8FzbHQ1a6NAME4QmYZOrRlqNUSYtk=; b=kJWRGauXgp6DovXqk8scmQIYOcoX51TEcInIdQBgCniYmISmLLlq57Szuw5tGiKh+b IGzp7ExUqqnRrEDC2ct+BlEN/CKMcduwdcqp7k5+0Y0ZPH7/xiqndf6i8M3PxdrCqjXp OuXpb1e/DCJSmF5fQG+RdLbRgCaYpbI61oLUQRjI2QHQyNAJ94yF+SPnBF9S3dw/Eqdc iYjEkouX6WMLiI9jNKc6DFmR4vfIEXUsoU0p/tqJP0V4DIwniCUckZ63m7tGPvyD+iIZ HpkFrvGoxdnM01rALfxjImULBUujM8fx/roVakEc5H4uKp09BF5g3I3+jdkpIKPJdZC0 or2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722621475; x=1723226275; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=4qWeLbFqoedEXg8FzbHQ1a6NAME4QmYZOrRlqNUSYtk=; b=lHCCesCeVGAzUH+/MyYpkGBjc0KahfkPfU3SYYMnNCAYcIAeoAnF8QmoEXPjBN5uO6 VlTyrohWxCRUw8cXP2PE1l1bGG0vxHi4ltE6SKaooUg5BhI/AVJmukUQ6bLX9WqVEUfj 3zz8oNrKeL/V5wDTSdCndjxqXrWyKsxcTD+yWqt1yO4W8fIod2kbAl0y3XAyuiBCwSqM z8IfM1U+MwGQRN3ko1zfrMNN6MRpqS62bs4mxBlI4s8Os1ULpExag474OyWDubf7jiIE XQCPrfUk4HC4E3ve/IGFed2ZRuFX8vVE1WU5uahZOnF/xMW1VxTW2tlD0WBIWUnGfVul SpyQ== X-Gm-Message-State: AOJu0YxOR5k64qztPvbKpRC3Us7AdIRmTGCqMDRVajNet17OyP+jIBdq I1R+GtCb4hTMqV2k3jbfxSA0d+ihXGvIaovg8o9d3TToSggMvU+smQgrz5Ll X-Google-Smtp-Source: AGHT+IFVH1IGJOtdgyCrNO3mZuR5RMs7V/5ijQOpUTyMFqOPdHZCiw7aFxvcffwQI/9mg3fxl0UBcQ== X-Received: by 2002:a17:902:d2c9:b0:1fd:99e8:f866 with SMTP id d9443c01a7336-1ff5735a4fcmr61894635ad.39.1722621475378; Fri, 02 Aug 2024 10:57:55 -0700 (PDT) Received: from localhost ([216.228.127.131]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1ff59294e92sm20019245ad.240.2024.08.02.10.57.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Aug 2024 10:57:54 -0700 (PDT) From: Yury Norov To: linux-kernel@vger.kernel.org Cc: Yury Norov , Christophe JAILLET , Leonardo Bras , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider Subject: [PATCH 0/2] sched/topology: optimize topology_span_sane() Date: Fri, 2 Aug 2024 10:57:41 -0700 Message-ID: <20240802175750.1152788-1-yury.norov@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Pre-compute pre-compute topology_span_sane() loop params and optimize the functtion to avoid calling cpumask_equal() when masks are the same. This series follows up comments from here: https://lore.kernel.org/lkml/ZqqV5OxZPHUgjhag@LeoBras/T/#md6b2b6bdd09e63740bbf010530211842a79b5f57 Yury Norov (2): sched/topology: pre-compute topology_span_sane() loop params sched/topology: optimize topology_span_sane() kernel/sched/topology.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) -- 2.43.0