From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, T_DKIMWL_WL_HIGH,UNPARSEABLE_RELAY,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by aws-us-west-2-korg-lkml-1.web.codeaurora.org (Postfix) with ESMTP id 9F1A6C433EF for ; Tue, 12 Jun 2018 17:48:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 532B520660 for ; Tue, 12 Jun 2018 17:48:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="uXTne7Wg" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 532B520660 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=oracle.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934319AbeFLRsp (ORCPT ); Tue, 12 Jun 2018 13:48:45 -0400 Received: from aserp2120.oracle.com ([141.146.126.78]:54054 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934018AbeFLRsj (ORCPT ); Tue, 12 Jun 2018 13:48:39 -0400 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w5CHjvq3139741; Tue, 12 Jun 2018 17:48:09 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2017-10-26; bh=ku8xBGZiCyWmNDUzv4ayAt5Rwiea3p9IL20jGtX8myM=; b=uXTne7WgYCcuFsRVZT+g36E/GtcHIbxHcZKP0R+5DuVH0KlwCReO0jtWHec1elEAtsMe EHQ6/xuCJ2ro+mf6l57p5SWZJ2h8+ClYynH8cxpwiRiyrs6HGIRWLqGK2VbePfcCdC8a FvjiGRZuRBVAN/HivfowF7Yn3qqgVY0/RLNNotckCXKWMyboBdzTQ2DwfZlULSiIGAUN CK9femQZcP1MvNSteqEVgKPIV6MdgxDGtMMUKlWvZUT5ccBO8B79Xt1sWElYar86YoiE KRwnf0KDf5aLo0fJYZIHaNjKxKqbdGw7nK0MA1IMrDggyHI4rCM9M730vdxCcwcyTSJE /g== Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by aserp2120.oracle.com with ESMTP id 2jgecxjbfr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 12 Jun 2018 17:48:08 +0000 Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0022.oracle.com (8.14.4/8.14.4) with ESMTP id w5CHm7fQ023509 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 12 Jun 2018 17:48:08 GMT Received: from abhmp0010.oracle.com (abhmp0010.oracle.com [141.146.116.16]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id w5CHm72a006226; Tue, 12 Jun 2018 17:48:07 GMT Received: from smazumda-Precision-T1600.us.oracle.com (/10.132.91.87) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 12 Jun 2018 10:48:07 -0700 From: subhra mazumdar To: linux-kernel@vger.kernel.org Cc: peterz@infradead.org, mingo@redhat.com, steven.sistare@oracle.com, dhaval.giani@oracle.com, rohit.k.jain@oracle.com, daniel.lezcano@linaro.org Subject: [PATCH 4/5] sched: add sched feature to disable idle core search Date: Tue, 12 Jun 2018 10:50:01 -0700 Message-Id: <20180612175002.31453-5-subhra.mazumdar@oracle.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20180612175002.31453-1-subhra.mazumdar@oracle.com> References: <20180612175002.31453-1-subhra.mazumdar@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=8922 signatures=668702 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=1 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=927 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1805220000 definitions=main-1806120198 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a new sched feature SIS_CORE to have an option to disable idle core search (select_idle_core). Signed-off-by: subhra mazumdar --- kernel/sched/features.h | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/sched/features.h b/kernel/sched/features.h index 85ae848..de15733 100644 --- a/kernel/sched/features.h +++ b/kernel/sched/features.h @@ -57,6 +57,7 @@ SCHED_FEAT(TTWU_QUEUE, true) */ SCHED_FEAT(SIS_AVG_CPU, false) SCHED_FEAT(SIS_PROP, true) +SCHED_FEAT(SIS_CORE, true) /* * Issue a WARN when we do multiple update_rq_clock() calls -- 2.9.3