Message ID | 1409051215-16788-13-git-send-email-vincent.guittot@linaro.org (mailing list archive) |
---|---|
State | New, archived |
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Return-Path: <linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org> X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 2B88DC0338 for <patchwork-linux-arm@patchwork.kernel.org>; Tue, 26 Aug 2014 11:12:26 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 24BD220158 for <patchwork-linux-arm@patchwork.kernel.org>; Tue, 26 Aug 2014 11:12:25 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C9162200BE for <patchwork-linux-arm@patchwork.kernel.org>; Tue, 26 Aug 2014 11:12:23 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XMEe9-0006pi-GX; Tue, 26 Aug 2014 11:10:41 +0000 Received: from merlin.infradead.org ([205.233.59.134]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XMEe6-0006m9-Na for linux-arm-kernel@bombadil.infradead.org; Tue, 26 Aug 2014 11:10:38 +0000 Received: from mail-wi0-f182.google.com ([209.85.212.182]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XMEc1-0000bo-Dp for linux-arm-kernel@lists.infradead.org; Tue, 26 Aug 2014 11:08:29 +0000 Received: by mail-wi0-f182.google.com with SMTP id d1so3944161wiv.15 for <linux-arm-kernel@lists.infradead.org>; Tue, 26 Aug 2014 04:08:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=MvuuFfLIuGHMT54RXPZutErrAmyeRzAn9ZRTKxL5HoI=; b=ino5LQ+WSm2iV8ZcToLo4Lsz2ZHqfZsNGgIOJVErmAJEwBFwlfLS0NvNH9z4+mMBvS eXClIZnJdHq6Lj8ZWUzpu6BVp4um/C7dvwGQ+TvAt17Rv9Zj54qwDTCOvJkBphtju+IE tAlbQup/OZCin7FwqNRG366ywaevIFMODTrQO+rMqJ/saXtNpvCPMW8CQ1AW2SciUqsm 9h9q6ZVQDyvjklBfpk9+78Q3PcsbP+SpvWs69nwjgDze6A5n4oCNuXSC5rO/hAeyvLtb 7EZD+uAUULEFKOzyKMCScu/C9mtknFLzgv/gkTL+WdJN3kjK5KMCRmsqt9/rS4RhAXmi HRPw== X-Gm-Message-State: ALoCoQm4rOYP7QXe2LDHymcHeOQ8x6ScyBr93YgJVURqdM2q/9hmVnn0TXNesFbm8Yx6KAfQ9FQ9 X-Received: by 10.194.187.4 with SMTP id fo4mr29184623wjc.35.1409051286513; Tue, 26 Aug 2014 04:08:06 -0700 (PDT) Received: from lmenx30s.lme.st.com (LPuteaux-656-01-48-212.w82-127.abo.wanadoo.fr. [82.127.83.212]) by mx.google.com with ESMTPSA id q6sm2494891wjy.47.2014.08.26.04.08.04 for <multiple recipients> (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 26 Aug 2014 04:08:05 -0700 (PDT) From: Vincent Guittot <vincent.guittot@linaro.org> To: peterz@infradead.org, mingo@kernel.org, linux-kernel@vger.kernel.org, preeti@linux.vnet.ibm.com, linux@arm.linux.org.uk, linux-arm-kernel@lists.infradead.org Subject: [PATCH v5 12/12] sched: add SD_PREFER_SIBLING for SMT level Date: Tue, 26 Aug 2014 13:06:55 +0200 Message-Id: <1409051215-16788-13-git-send-email-vincent.guittot@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1409051215-16788-1-git-send-email-vincent.guittot@linaro.org> References: <1409051215-16788-1-git-send-email-vincent.guittot@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140826_070829_602851_9CA0AF33 X-CRM114-Status: UNSURE ( 8.83 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.6 (--) Cc: nicolas.pitre@linaro.org, riel@redhat.com, daniel.lezcano@linaro.org, Vincent Guittot <vincent.guittot@linaro.org>, efault@gmx.de, dietmar.eggemann@arm.com, linaro-kernel@lists.linaro.org, Morten.Rasmussen@arm.com X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP |
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 7c3b237..ab5ab60 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6093,6 +6093,7 @@ sd_init(struct sched_domain_topology_level *tl, int cpu) */ if (sd->flags & SD_SHARE_CPUCAPACITY) { + sd->flags |= SD_PREFER_SIBLING; sd->imbalance_pct = 110; sd->smt_gain = 1178; /* ~15% */
add the SD_PREFER_SIBLING flag for SMT level in order to ensure that the scheduler will put at least 1 task per core. Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> --- kernel/sched/core.c | 1 + 1 file changed, 1 insertion(+)