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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0AA23C33C9E for ; Tue, 14 Jan 2020 16:50:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DA5D62075B for ; Tue, 14 Jan 2020 16:50:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728885AbgANQut (ORCPT ); Tue, 14 Jan 2020 11:50:49 -0500 Received: from eu-smtp-delivery-151.mimecast.com ([146.101.78.151]:57752 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726270AbgANQus (ORCPT ); Tue, 14 Jan 2020 11:50:48 -0500 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-75-pFC22tL3O0OjVY1uMnxQBA-1; Tue, 14 Jan 2020 16:50:44 +0000 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Tue, 14 Jan 2020 16:50:43 +0000 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Tue, 14 Jan 2020 16:50:43 +0000 From: David Laight To: 'Vincent Guittot' , Peter Zijlstra CC: Viresh Kumar , Ingo Molnar , Juri Lelli , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , linux-kernel Subject: sched/fair: scheduler not running high priority process on idle cpu Thread-Topic: sched/fair: scheduler not running high priority process on idle cpu Thread-Index: AdXK8cUFXa7JpPXmQNq7oQ32S9fYHA== Date: Tue, 14 Jan 2020 16:50:43 +0000 Message-ID: <212fabd759b0486aa8df588477acf6d0@AcuMS.aculab.com> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 X-MC-Unique: pFC22tL3O0OjVY1uMnxQBA-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org SSd2ZSBhIHRlc3QgdGhhdCB1c2VzIGZvdXIgUlQgcHJpb3JpdHkgcHJvY2Vzc2VzIHRvIHByb2Nl c3MgYXVkaW8gZGF0YSBldmVyeSAxMG1zLg0KT25lIHByb2Nlc3Mgd2FrZXMgdXAgdGhlIG90aGVy IHRocmVlLCB0aGV5IGFsbCAnYmVhdmVyIGF3YXknIGNsZWFyaW5nIGEgcXVldWUgb2YNCmpvYnMg YW5kIHRoZSBsYXN0IG9uZSB0byBmaW5pc2ggc2xlZXBzIHVudGlsIHRoZSBuZXh0IHRpY2suDQpV c3VhbGx5IHRoaXMgdGFrZXMgYWJvdXQgMC41bXMsIGJ1dCBzb21ldGltZXMgdGFrZXMgb3ZlciAz bXMuDQoNCkFGQUlDVCB0aGUgcHJvY2Vzc2VzIGFyZSBub3JtYWxseSB3b2tlbiBvbiB0aGUgc2Ft ZSBjcHUgdGhleSBsYXN0IHJhbiBvbi4NClRoZXJlIHNlZW1zIHRvIGJlIGEgcHJvYmxlbSB3aGVu IHRoZSBzZWxlY3RlZCBjcHUgaXMgcnVubmluZyBhIChsb3cgcHJpb3JpdHkpDQpwcm9jZXNzIHRo YXQgaXMgbG9vcGluZyBpbiBrZXJuZWwgWzFdLg0KSSdkIGV4cGVjdCBteSBwcm9jZXNzIHRvIGJl IHBpY2tlZCB1cCBieSBvbmUgb2YgdGhlIGlkbGUgY3B1cywgYnV0IHRoaXMNCmRvZXNuJ3QgaGFw cGVuLg0KSW5zdGVhZCB0aGUgcHJvY2VzcyBzaXRzIGluIHN0YXRlICd3YWl0aW5nJyB1bnRpbCB0 aGUgYWN0aXZlIHByb2Nlc3NlcyBzbGVlcHMNCihvciBjYWxscyBjb25kX3Jlc2NoZWQoKSkuDQoN CklzIHRoaXMgcmVhbGx5IHRoZSBleHBlY3RlZCBiZWhhdmlvdXI/Pz8/Pw0KDQpUaGlzIGlzICA1 LjQuMC1yYzcga2VybmVsLg0KSSBjb3VsZCB0cnkgdGhlIGN1cnJlbnQgNS41LXJjIG9uZSBpZiBh bnkgcmVjZW50IGNoYW5nZXMgbWlnaHQgYWZmZWN0IHRoaW5ncy4NCg0KQWRkaXRpb25hbGx5IChw cm9iYWJseSBiZWNhdXNlIGN2X3dhaXQoKSBpcyBpbXBsZW1lbnRlZCB3aXRoICd0aWNrZXQgbG9j a3MnKQ0Kbm9uZSBvZiB0aGUgb3RoZXIgcHJvY2Vzc2VzIHdhaXRpbmcgZm9yIHRoZSBjdiBhcmUg d29rZW4gZWl0aGVyLg0KDQpbMV0gWG9yZyBzZWVtcyB0byBwZXJpb2RpY2FsbHkgcmVxdWVzdCB0 aGUga2VybmVsIHdvcmtxdWV1ZSBydW4NCmRybV9jZmx1c2hfc2coKSB0byBmbHVzaCB0aGUgZGlz cGxheSBidWZmZXIgY2FjaGUuDQpGb3IgYSAyNTYweDExNDAgZGlzcGxheSB0aGlzIGlzIDM2MDAg NGsgcGFnZXMgYW5kIHRoZSBmbHVzaCBsb29wDQp0YWtlcyB+My4zbXMuDQpIb3dldmVyIHRoZXJl IGFyZSBwcm9iYWJseSBvdGhlciBwbGFjZXMgd2hlcmUgYSBwcm9jZXNzIGNhbiBydW4gaW4NCmtl cm5lbCBmb3Igc2lnbmlmaWNhbnQgbGVuZ3RocyBvZiB0aW1lLg0KDQoJRGF2aWQNCg0KLQ0KUmVn aXN0ZXJlZCBBZGRyZXNzIExha2VzaWRlLCBCcmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRv biBLZXluZXMsIE1LMSAxUFQsIFVLDQpSZWdpc3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K