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[209.132.180.67]) by mx.google.com with ESMTP id q20si21457728otn.297.2020.01.20.02.52.10; Mon, 20 Jan 2020 02:52:22 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726590AbgATKvL (ORCPT + 99 others); Mon, 20 Jan 2020 05:51:11 -0500 Received: from eu-smtp-delivery-151.mimecast.com ([146.101.78.151]:43439 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726148AbgATKvL (ORCPT ); Mon, 20 Jan 2020 05:51:11 -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-77-UQ1tz0pqPPOA0jnC9SlVCQ-1; Mon, 20 Jan 2020 10:51:08 +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; Mon, 20 Jan 2020 10:51:07 +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; Mon, 20 Jan 2020 10:51:07 +0000 From: David Laight To: 'Dietmar Eggemann' , 'Steven Rostedt' CC: 'Vincent Guittot' , Peter Zijlstra , Viresh Kumar , Ingo Molnar , Juri Lelli , Ben Segall , Mel Gorman , linux-kernel Subject: RE: 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: AdXK8cUFXa7JpPXmQNq7oQ32S9fYHAACik4AAADJLkAAAO3PAAAmXEggAAKDBAAAAvfesAABpyOAAABDBiAA7uyIgAAB3Sgw Date: Mon, 20 Jan 2020 10:51:07 +0000 Message-ID: <512f01b3e4cd4c3fa26ce767466fec21@AcuMS.aculab.com> References: <212fabd759b0486aa8df588477acf6d0@AcuMS.aculab.com> <20200114115906.22f952ff@gandalf.local.home> <5ba2ae2d426c4058b314c20c25a9b1d0@AcuMS.aculab.com> <20200114124812.4d5355ae@gandalf.local.home> <878a35a6642d482aa0770a055506bd5e@AcuMS.aculab.com> <20200115081830.036ade4e@gandalf.local.home> <9f98b2dd807941a3b85d217815a4d9aa@AcuMS.aculab.com> <20200115103049.06600f6e@gandalf.local.home> <26b2f8f7-b11f-0df0-5260-a232e1d5bf1a@arm.com> In-Reply-To: <26b2f8f7-b11f-0df0-5260-a232e1d5bf1a@arm.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: UQ1tz0pqPPOA0jnC9SlVCQ-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com 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 RnJvbTogRGlldG1hciBFZ2dlbWFubg0KPiBTZW50OiAyMCBKYW51YXJ5IDIwMjAgMDk6MzkNCi4u DQo+ID4gSSBndWVzcyB0aGlzIG9ubHkgJ2dpdmVzIGF3YXknIGV4dHJhIFJUIHByb2Nlc3Nlcy4N Cj4gPiBSYXRoZXIgdGhhbiAnc3RlYWxpbmcnIHRoZW0gLSB3aGljaCBpcyB3aGF0IEkgbmVlZC4N Cj4gDQo+IElzbid0IHBhcnQgb2YgdGhlIHByb2JsZW0gdGhhdCBSVCBkb2Vzbid0IG1haW50YWlu DQo+IGNwLT5wcmlfdG9fY3B1W0NQVVBSSV9JRExFXSAoQ1BVUFJJX0lETEUgPSAwKS4NCj4gDQo+ IFNvIHB1c2gvcHVsbCAoZmluZF9sb3dlc3RfcnEoKSkgbmV2ZXIgcmV0dXJucyBhIG1hc2sgb2Yg aWRsZSBDUFVzLg0KPiANCj4gVGhlcmUgd2FzDQo+IGh0dHBzOi8vbG9yZS5rZXJuZWwub3JnL3Iv MTQxNTI2MDMyNy0zMDQ2NS0yLWdpdC1zZW5kLWVtYWlsLXBhbmcueHVubGVpQGxpbmFyby5vcmcN Cj4gaW4gMjAxNCBidXQgaXQgZGlkbid0IGdvIG1haW5saW5lLg0KPiANCj4gVGhlcmUgd2FzIGEg c2ltaWxhciBxdWVzdGlvbiBpbiBOb3YgbGFzdCB5ZWFyOg0KPiANCj4gaHR0cHM6Ly9sb3JlLmtl cm5lbC5vcmcvci9DSDJQUjE5TUIzODk2QUZFMUQxM0FEODhBMTcxNjA4NjBGQzcwMEBDSDJQUjE5 TUIzODk2Lm5hbXByZDE5LnByb2Qub3V0bG9vay5jb20NCg0KVGhleSBhcmUgcHJvYmFibHkgYWxs IHJlbGF0ZWQuDQpNeSBicmFpbiBkb2Vzbid0IGhhdmUgc3BhY2UgdG8gY29tcGxldGVseSAnZ3Jv aycgdGhlIHNjaGVkdWxlciB3aXRob3V0IHNvbWV0aGluZw0KZWxzZSBiZWluZyBwdXNoZWQgb3V0 IG9mIHRoZSBtYWluIGNhY2hlLg0KDQpJIGJldCB0aGVyZSBhcmUgb3RoZXIgY2FzZXMgd2hlcmUg aXQgZGVjaWRlcyB0byBydW4gYSBwcm9jZXNzIG9uIGEgY3B1IHRoYXQNCmlzIHJ1bm5pbmcgYSBw cm9jZXNzIHRoYXQgaXMgYm91bmQgdG8gdGhhdCBjcHUgd2hpbGUgdGhlcmUgYXJlIG90aGVyIGlk bGUgY3B1Lg0KDQpQYXJ0aWFsbHkgYmVjYXVzZSB0aGUgcHJvYmxlbSBpcyAnaGFyZCcsIGdldHRp bmcgaXQgYW55d2hlcmUgbmVhciAncmlnaHQnDQpmb3IgTlVNQSBzeXN0ZW1zIHdpdGggbG90cyBv ZiBjcHVzIHdpdGhvdXQgdXNpbmcgYWxsIHRoZSBwcm9jZXNzaW5nDQpwb3dlciBqdXN0IGRlY2lk aW5nIHdoYXQgdG8gcnVuIGlzIHByb2JhYmx5IGltcG9zc2libGUuDQpIb3dldmVyIGZhc3RlciBk ZWNpc2lvbnMgY2FuIHByb2JhYmx5IGJlIG1hZGUgd2l0aCAnc2xpZ2h0bHkgc3RhbGUnIGRhdGEg dGhhdA0KZ2V0IGNvcnJlY3RlZCBsYXRlciBpZiB0aGV5IGFyZSBpbmNvcnJlY3QuDQoNCglEYXZp ZA0KDQotDQpSZWdpc3RlcmVkIEFkZHJlc3MgTGFrZXNpZGUsIEJyYW1sZXkgUm9hZCwgTW91bnQg RmFybSwgTWlsdG9uIEtleW5lcywgTUsxIDFQVCwgVUsNClJlZ2lzdHJhdGlvbiBObzogMTM5NzM4 NiAoV2FsZXMpDQo=