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 A3079C2BA2B for ; Fri, 10 Apr 2020 10:04:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 81C1E20757 for ; Fri, 10 Apr 2020 10:04:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726082AbgDJKE4 (ORCPT ); Fri, 10 Apr 2020 06:04:56 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:26694 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725861AbgDJKE4 (ORCPT ); Fri, 10 Apr 2020 06:04:56 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-48-x_uEFZHKOVCh5ORMr0Lc0A-1; Fri, 10 Apr 2020 11:04:53 +0100 X-MC-Unique: x_uEFZHKOVCh5ORMr0Lc0A-1 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; Fri, 10 Apr 2020 11:04:53 +0100 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; Fri, 10 Apr 2020 11:04:53 +0100 From: David Laight To: 'Konstantin Kharlamov' , "netdev@vger.kernel.org" Subject: RE: On 5.6.2, SCTP is 10 000 times slower than TCP Thread-Topic: On 5.6.2, SCTP is 10 000 times slower than TCP Thread-Index: AQHWDnmIUf34av0T4karIpy1I9PllqhyHxew Date: Fri, 10 Apr 2020 10:04:53 +0000 Message-ID: References: <09cc102b-31d1-b0e8-3ea1-3b07b9a6df74@yandex.ru> In-Reply-To: <09cc102b-31d1-b0e8-3ea1-3b07b9a6df74@yandex.ru> 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-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org RnJvbTogS29uc3RhbnRpbiBLaGFybGFtb3YNCj4gU2VudDogMDkgQXByaWwgMjAyMCAxNTowOQ0K PiANCj4gSSB3YXMgY29uc2lkZXJpbmcsIHdoZXRoZXIgU0NUUCBjb3VsZCBiZSBmYXN0ZXIgdGhh biBUQ1AsIGFuZCBtYWRlIHNvbWUNCj4gbWVhc3VyZW1lbnRzLg0KDQpTQ1RQIHdpbGwgYWx3YXlz IGJlIHNsb3dlciB0aGFuIFRDUCAtIGl0IGlzIG11Y2ggbW9yZSBjb21wbGljYXRlZC4NCkFkZGl0 aW9uYWxseSBpdCBpcyBtdWNoIGhhcmRlciB0byBmaWxsIGV0aGVybmV0IGZyYW1lcyAtIHdoaWNo IG1ha2VzDQppdCBldmVuIHNsb3dlci4NCk5vdCB0byBtZW50aW9uIHRoZSBzbG93ZXIgY2hlY2tz dW0gYWxnb3JpdGhtLg0KLSBJIGNhbiBhZGQgbW9yZS4uLg0KSU1ITyBldmVuIHByb3RvY29scyBs aWtlIE0zVUEgd291bGQgcnVuIGJldHRlciBvdmVyIFRDUC4NCg0KPiBSZXN1bHRzIGFyZSBhc3Rv bmlzaGluZzogNC43NCBHQi9zZWMgZm9yIFRDUCB2cyA1OTAsIEtCL3NlYyBmb3INCj4gU0NUUC4g TGV0IG1lIHJlcGhyYXNlOiB0aGF0IGlzIDQuNzQgR0Ivc2VjIHZzIDAuMDAwNTkgR0Ivc2VjISBX b3cuIFRoaXMgbG9va3MNCj4gc29vbyB3cm9uZywgdGhhdCB0aGlzIGlzIHByb2JhYmx5IGEgYnVn LCBzbyBJJ20gcmVwb3J0aW5nIGl0IGhlcmUuDQoNCkl0IHNob3VsZG4ndCBiZSB0aGF0IG11Y2gg c2xvd2VyIHRob3VnaC4NCg0KPiBUZXN0cyBhcmUgZG9uZSBvbiBrZXJuZWwgNS42LjIgd2l0aCBx cGVyZiAwLjQuMTEgYXMgZm9sbG93czoNCj4gDQo+IDEuIFJ1biBgcXBlcmZgIGluIG9uZSB0ZXJt aW5hbA0KPiAyLiBSdW4gYHFwZXJmIC12IGxvY2FsaG9zdCB0Y3BfYncgdGNwX2xhdCBzY3RwX2J3 IHNjdHBfbGF0YCBpbiB0aGUgb3RoZXIgdGVybWluYWwNCj4gDQo+IEJlbG93IGFyZSA0IHJlc3Vs dHMgZm9yIG15IERlbGwgSW5zcGlyb24gNTc2NyBsYXB0b3AuDQo+IA0KPiBUZXN0IG51bWJlciB8 IFRDUCBiYW5kd2lkdGggfCBUQ1AgbGF0ZW5jeSwgzrxzIHwgU0NUUCBiYW5kd2lkdGggfCBTQ1RQ IGxhdGVuY3ksIM68cw0KPiAxICAgICAgICAgICB8IDQuNzQgR0Ivc2VjICAgfCA2LjgxICAgICAg ICAgICAgfCA1OTAsIEtCL3NlYyAgICB8IDExLjgNCj4gMiAgICAgICAgICAgfCA1IEdCL3NlYyAg ICAgIHwgNi43OSAgICAgICAgICAgIHwgNzIxLCBLQi9zZWMgICAgfCAxMC41DQo+IDMgICAgICAg ICAgIHwgNC43MyBHQi9zZWMgICB8IDYuNzYgICAgICAgICAgICB8IDguMzksIE1CL3NlYyAgIHwg MTAuOQ0KPiA0ICAgICAgICAgICB8IDUuNyBHQi9zZWMgICAgfCA2LjEgICAgICAgICAgICAgfCA1 My40LCBNQi9zZWMgICB8IDkuMzMNCg0KVGhlcmUgaXMgc29tZXRoaW5nIHN0cmFuZ2UgZ29pbmcg b24sIHRoZSBsYXRlbmN5IGlzIHJlYXNvbmFibGUuDQoNCj4gRldJVywgSSBhbHNvIG1hZGUgc29t ZSBtZWFzdXJlbWVudHMgb24gYSBzZXJ2ZXIgaHcgd2l0aCBvbGRlciBrZXJuZWwgNC4xOS4gVGhl DQo+IGRpZmZlcmVuY2UgdGhlcmUgaXMgbm90IHRoYXQgYmlnLCB5ZXQgZXZlbiB0aGVyZSBTQ1RQ IGlzIHR3aWNlIGFzIHNsb3dlciBjb21wYXJlZA0KPiB0byBUQ1AuDQoNClRoYXQgd291bGRuJ3Qg c3VycHJpc2UgbWUuDQoNCglEYXZpZA0KDQotDQpSZWdpc3RlcmVkIEFkZHJlc3MgTGFrZXNpZGUs IEJyYW1sZXkgUm9hZCwgTW91bnQgRmFybSwgTWlsdG9uIEtleW5lcywgTUsxIDFQVCwgVUsNClJl Z2lzdHJhdGlvbiBObzogMTM5NzM4NiAoV2FsZXMpDQo=