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 62CCCC34047 for ; Wed, 19 Feb 2020 11:18:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 30295206E2 for ; Wed, 19 Feb 2020 11:18:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726777AbgBSLSd (ORCPT ); Wed, 19 Feb 2020 06:18:33 -0500 Received: from eu-smtp-delivery-151.mimecast.com ([146.101.78.151]:23254 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726469AbgBSLSc (ORCPT ); Wed, 19 Feb 2020 06:18:32 -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-237-G-f7kF86NV-7-N2Q1N07Ew-1; Wed, 19 Feb 2020 11:18:28 +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; Wed, 19 Feb 2020 11:18:27 +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; Wed, 19 Feb 2020 11:18:27 +0000 From: David Laight To: 'chris hyser' , Parth Shah , "vincent.guittot@linaro.org" , "patrick.bellasi@matbug.net" , "valentin.schneider@arm.com" , "dhaval.giani@oracle.com" , "dietmar.eggemann@arm.com" CC: "linux-kernel@vger.kernel.org" , "peterz@infradead.org" , "mingo@redhat.com" , "qais.yousef@arm.com" , "pavel@ucw.cz" , "qperret@qperret.net" , "pjt@google.com" , "tj@kernel.org" Subject: RE: [PATCH v3 0/3] Introduce per-task latency_nice for scheduler hints Thread-Topic: [PATCH v3 0/3] Introduce per-task latency_nice for scheduler hints Thread-Index: AQHV5q881FBlSjXcbk+qN0I8G32+xqgiV6OQ Date: Wed, 19 Feb 2020 11:18:27 +0000 Message-ID: <3ce2e8940fb14d95b011c8b30892aa62@AcuMS.aculab.com> References: <20200116120230.16759-1-parth@linux.ibm.com> <8ed0f40c-eeb4-c487-5420-a8eb185b5cdd@linux.ibm.com> In-Reply-To: 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: G-f7kF86NV-7-N2Q1N07Ew-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 RnJvbTogY2hyaXMgaHlzZXINCj4gU2VudDogMTggRmVicnVhcnkgMjAyMCAyMzowMA0KLi4uDQo+ IEFsbCwgSSB3YXMgYXNrZWQgdG8gdGFrZSBhIGxvb2sgYXQgdGhlIG9yaWdpbmFsIGxhdGVuY3lf bmljZSBwYXRjaHNldC4NCj4gRmlyc3QsIHRvIGNsYXJpZnkgb2JqZWN0aXZlcywgT3JhY2xlIGlz IG5vdA0KPiBpbnRlcmVzdGVkIGluIHRyYWRpbmcgdGhyb3VnaHB1dCBmb3IgbGF0ZW5jeS4NCj4g V2hhdCB3ZSBmb3VuZCBpcyB0aGF0IHRoZSBEQiBoYXMgc3BlY2lmaWMgdGFza3Mgd2hpY2ggZG8g dmVyeSBsaXR0bGUgYnV0DQo+IG5lZWQgdG8gZG8gdGhpcyBhcyBhYnNvbHV0ZWx5IHF1aWNrbHkg YXMgcG9zc2libGUsIGllIGV4dHJlbWUgbGF0ZW5jeQ0KPiBzZW5zaXRpdml0eS4gU2Vjb25kLCB0 aGUga2V5IHRvIGxhdGVuY3kgcmVkdWN0aW9uDQo+IGluIHRoZSB0YXNrIHdha2V1cCBwYXRoIHNl ZW1zIHRvIGJlIGxpbWl0aW5nIHZhcmlhdGlvbnMgb2YgImlkbGUgY3B1IiBzZWFyY2guDQo+IFRo ZSBsYXR0ZXIgcGFydGljdWxhcmx5IGludGVyZXN0cyBtZSBhcyBhbiBleGFtcGxlIG9mICJwbGF0 Zm9ybSBzaXplDQo+IGJhc2VkIGxhdGVuY3kiIHdoaWNoIEkgYmVsaWV2ZSB0byBiZSBpbXBvcnRh bnQgZ2l2ZW4gYWxsIHRoZSB2YXJ5aW5nIHNpemUNCj4gVk1zIGFuZCBjb250YWluZXJzLg0KDQpG cm9tIG15IGV4cGVyaW1lbnRzIHRoZXJlIGFyZSBhIGZldyB0aGluZ3MgdGhhdCBzZWVtIHRvIGFm ZmVjdCBsYXRlbmN5DQpvZiB3YWtpbmcgdXAgcmVhbCB0aW1lIChzY2hlZCBmaWZvKSB0YXNrcyBv biBhIG5vcm1hbCBrZXJuZWw6DQoNCjEpIFRoZSB0aW1lIHRha2VuIGZvciB0aGUgKGludGVsIHg4 NikgY3B1IHRvIHdha2V1cCBmcm9tIG1vbml0b3IvbXdhaXQuDQogICBJZiB0aGUgY3B1IGlzIGFs bG93ZWQgdG8gZW50ZXIgZGVlcGVyIHNsZWVwIHN0YXRlcyB0aGlzIGNhbiB0YWtlIDkwMHVzLg0K ICAgQW55IGNoYW5nZXMgdG8gdGhpcyBhcmUgc3lzdGVtLXdpZGUgbm90IHByb2Nlc3Mgc3BlY2lm aWMuDQoNCjIpIElmIHRoZSBjcHUgYW4gUlQgcHJvY2VzcyBsYXN0IHJhbiBvbiAoaWUgdGhlIG9u ZSBpdCBpcyB3b2tlbiBvbikgaXMNCiAgIHJ1bm5pbmcgaW4ga2VybmVsLCB0aGUgcHJvY2VzcyBz d2l0Y2ggd29uJ3QgaGFwcGVuIHVudGlsIGNvbmRfcmVzaGVkKCkNCiAgIGlzIGNhbGxlZC4NCiAg IE9uIG15IHN5c3RlbSB0aGUgY29kZSB0byBmbHVzaCB0aGUgZGlzcGxheSBmcmFtZSBidWZmZXIg dGFrZXMgMy4zbXMuDQogICBDb21waWxpbmcgYSBrZXJuZWwgd2l0aCBDT05GSUdfUFJFRU1QVD15 IHdpbGwgcmVkdWNlIHRoaXMuDQoNCjMpIElmIGEgaGFyZHdhcmUgaW50ZXJydXB0IGhhcHBlbnMg anVzdCBhZnRlciB0aGUgcHJvY2VzcyBpcyB3b2tlbg0KICAgdGhlbiB5b3UgaGF2ZSB0byB3YWl0 IHVudGlsIGl0IGZpbmlzaGVzIGFuZCBhbnkgJ3NvZnRpbnQnIHdvcmsNCiAgIHRoYXQgaXMgc2No ZWR1bGVkIG9uIHRoZSBzYW1lIGNwdSBmaW5pc2hlcy4NCiAgIFRoZSBldGhlcm5ldCBkcml2ZXIg dHJhbnNtaXQgY29tcGxldGlvbnMgYW4gcmVjZWl2ZSByaW5nIGZpbGxpbmcNCiAgIGNhbiBlYXNp bHkgdGFrZSAxbXMuDQogICBCb290aW5nIHdpdGggJ3RocmVhZGlycScgbWlnaHQgaGVscCB0aGlz Lg0KDQo0KSBJZiB5b3UgbmVlZCB0byBhY3F1aXJlIGEgbG9jay9mdXRleCB0aGVuIHlvdSBuZWVk IHRvIGFsbG93IGZvciB0aGUNCiAgIHByb2Nlc3MgdGhhdCBob2xkcyBpdCBiZWluZyBkZWxheWVk IGJ5IGEgaGFyZHdhcmUgaW50ZXJydXB0IChldGMpLg0KICAgU28gZXZlbiBpZiB0aGUgbG9jayBp cyBvbmx5IGhlbGQgZm9yIGEgZmV3IGluc3RydWN0aW9ucyBpdCBjYW4gdGFrZQ0KICAgYSBsb25n IHRpbWUgdG8gYWNxdWlyZS4NCiAgIChJIG5lZWQgdG8gY2hhbmdlIHNvbWUgbGlua2VkIGxpc3Rz IHRvIGFycmF5cyBpbmRleGVkIGJ5IGFuIGF0b21pY2FsbHkNCiAgIGluY3JlbWVudGVkIGdsb2Jh bCBpbmRleC4pDQoNCkZXSVcgSSBjYW4ndCBpbWFnaW5lIGhvdyBhIGRhdGFiYXNlIGNhbiBoYXZl IGFueXRoaW5nIHRoYXQgaXMgdGhhdA0KbGF0ZW5jeSBzZW5zaXRpdmUuDQpXZSBhcmUgZG9pbmcg bG90cyBvZiBjaGFubmVscyBvZiBhdWRpbyBwcm9jZXNzaW5nIGFuZCBoYXZlIGEgbG90IG9mIHdv cmsNCnRvIGRvIHdpdGhpbiAxMG1zIHRvIGF2b2lkIGF1ZGlibGUgZXJyb3JzLg0KDQoJRGF2aWQN Cg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNzIExha2VzaWRlLCBCcmFtbGV5IFJvYWQsIE1vdW50IEZh cm0sIE1pbHRvbiBLZXluZXMsIE1LMSAxUFQsIFVLDQpSZWdpc3RyYXRpb24gTm86IDEzOTczODYg KFdhbGVzKQ0K