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[139.178.88.99]) by mx.google.com with ESMTPS id f24-20020a17090ace1800b0028abf878ca1si1361782pju.46.2024.01.05.12.45.32 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Jan 2024 12:45:32 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-18350-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) client-ip=139.178.88.99; Authentication-Results: mx.google.com; dkim=pass header.i=@inria.fr header.s=dc header.b=LzyO4U46; spf=pass (google.com: domain of linux-kernel+bounces-18350-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) smtp.mailfrom="linux-kernel+bounces-18350-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=inria.fr Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id 65D2828510B for ; Fri, 5 Jan 2024 20:45:32 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 20D3D2137D; Fri, 5 Jan 2024 20:45:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=inria.fr header.i=@inria.fr header.b="LzyO4U46" X-Original-To: linux-kernel@vger.kernel.org Received: from mail3-relais-sop.national.inria.fr (mail3-relais-sop.national.inria.fr [192.134.164.104]) (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 455086127 for ; Fri, 5 Jan 2024 20:45:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=inria.fr Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=inria.fr DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=inria.fr; s=dc; h=date:from:to:cc:subject:in-reply-to:message-id: references:mime-version; bh=kxcpSraYcCCdlbkrmk617G0FNAjkCI44yT5nkeDszYk=; b=LzyO4U46lvVUEG+sBLqgnbsKHftPGn8twpF5jqbTCQSslTF0KGnQ+kX6 nxCLR6UKKGrW1Qltqufj5Rtso2Rb1KO+MHTm2Rd4jIRYPqa+qa8YsnzWY wLb5fm+1Oq6bcMO94HJMyEtqIpcfJf2o6ABorIIID0xAuvDoznleJMdN8 Y=; Authentication-Results: mail3-relais-sop.national.inria.fr; dkim=none (message not signed) header.i=none; spf=SoftFail smtp.mailfrom=julia.lawall@inria.fr; dmarc=fail (p=none dis=none) d=inria.fr X-IronPort-AV: E=Sophos;i="6.04,334,1695679200"; d="scan'208";a="75984722" Received: from 231.85.89.92.rev.sfr.net (HELO hadrien) ([92.89.85.231]) by mail3-relais-sop.national.inria.fr with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Jan 2024 21:45:20 +0100 Date: Fri, 5 Jan 2024 21:45:20 +0100 (CET) From: Julia Lawall X-X-Sender: jll@hadrien To: Vincent Guittot cc: Peter Zijlstra , Ingo Molnar , Dietmar Eggemann , Mel Gorman , linux-kernel@vger.kernel.org Subject: Re: EEVDF and NUMA balancing In-Reply-To: Message-ID: References: <98b3df1-79b7-836f-e334-afbdd594b55@inria.fr> <93112fbe-30be-eab8-427c-5d4670a0f94e@inria.fr> <9dc451b5-9dd8-89f2-1c9c-7c358faeaad@inria.fr> <2359ab5-4556-1a73-9255-3fcf2fc57ec@inria.fr> <6618dcfa-a42f-567c-2a9d-a76786683b29@inria.fr> User-Agent: Alpine 2.22 (DEB 394 2020-01-19) 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 I also tried a 2 socket AMD EPYC 7352 (24 cores/CPU). There I can also get prolonged idle cores, but in seems to happen less often. julia