From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3447642069; Fri, 7 Feb 2025 22:02:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738965762; cv=none; b=Lf1y8vNx3RtSq/obI+WiTH0fHpvvC3NXtN9QCuE2aGBlpkMqQgcFPup5b1yM+MYRAjRRr+cddgJWsslgkqXZEk4Ek8Ji2W70hs0adyy2A6Hx2eduq8OtVdOa0KOVzOlREAteLTusSsYiiKjRSqNxVFOORaWJbNaXDdwTFaGWSkA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738965762; c=relaxed/simple; bh=OHXYqRG5reKAlWt/SSkCGeCCohW0zKwzj+nrrIhVr5U=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=J5P7q7rBczEEKdvKerWTUQ1wumIpEfmEnCVxz8aoSifm/O10LmeS3GEeTRdXoJcRZn/H92PHlBXaH/Dbu+xLI3vRbGqNF7McCeqDjGWjDRFrgnxGW3OdtRW7Bhi7cfycZWDTQfJwLJr42OTuBhJaMD0geAtFN5Oh7vJcgn4DNxw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=H5HUA4Gl; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="H5HUA4Gl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 895EAC4CED1; Fri, 7 Feb 2025 22:02:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1738965760; bh=OHXYqRG5reKAlWt/SSkCGeCCohW0zKwzj+nrrIhVr5U=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=H5HUA4GltF31TufGVlzTZdHCdD/JCvp+bffwKSBgKSOc0X5JDyc9SlgnPRvQHKTFF xkqmDlVpNQifxRBUoS7Qrl2WDwmlWsrjetq0F4mxWoN4ivO94DAPnj8wb4LdcM8jCs pQZbZEajCCUMTtu21ivvD8UWsoDnvk2XVR56WjVrqzFMBGuT4UMHgwvTmEAixuEtFd FMAEwLX7MYz0QDj94SiXVwh7tsV0WZLEybhhGK6hdz7Mc41kmmhgwsfvhoTVj296As SRfoEJcOLk6f4yIAe2RY0IkevEWXua+bjKoVYL0ti6f289ZhCFpAnbYRnfGkyY2L9c TmHOQVgCM88fg== Date: Fri, 7 Feb 2025 12:02:39 -1000 From: Tejun Heo To: Andrea Righi Cc: David Vernet , Changwoo Min , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Ian May , bpf@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 4/6] sched_ext: idle: introduce SCX_PICK_IDLE_IN_NODE Message-ID: References: <20250207211104.30009-1-arighi@nvidia.com> <20250207211104.30009-5-arighi@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250207211104.30009-5-arighi@nvidia.com> On Fri, Feb 07, 2025 at 09:40:51PM +0100, Andrea Righi wrote: > Introduce a new flag to restrict the selection of an idle CPU to a > single specific NUMA node. > > Signed-off-by: Andrea Righi > --- > kernel/sched/ext.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c > index 0063a646124bc..8dbe22167c158 100644 > --- a/kernel/sched/ext.c > +++ b/kernel/sched/ext.c > @@ -775,6 +775,7 @@ enum scx_deq_flags { > > enum scx_pick_idle_cpu_flags { > SCX_PICK_IDLE_CORE = 1LLU << 0, /* pick a CPU whose SMT siblings are also idle */ > + SCX_PICK_IDLE_IN_NODE = 1LLU << 1, /* pick a CPU in the same target NUMA node */ > }; Please merge this into the patch which actually uses the flag. Thanks. -- tejun