From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from esa3.hgst.iphmx.com ([216.71.153.141]:60602 "EHLO esa3.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750908AbdHaUhl (ORCPT ); Thu, 31 Aug 2017 16:37:41 -0400 From: Bart Van Assche To: "ming.lei@redhat.com" CC: "hch@infradead.org" , "linux-block@vger.kernel.org" , "mgorman@techsingularity.net" , "axboe@fb.com" , "loberman@redhat.com" , "paolo.valente@linaro.org" Subject: Re: [PATCH V3 05/14] blk-mq-sched: improve dispatching from sw queue Date: Thu, 31 Aug 2017 20:36:53 +0000 Message-ID: <1504211812.31872.41.camel@wdc.com> References: <20170826163332.28971-1-ming.lei@redhat.com> <20170826163332.28971-6-ming.lei@redhat.com> <1504110886.2526.36.camel@wdc.com> <20170831034333.GD12246@ming.t460p> In-Reply-To: <20170831034333.GD12246@ming.t460p> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-block-owner@vger.kernel.org List-Id: linux-block@vger.kernel.org T24gVGh1LCAyMDE3LTA4LTMxIGF0IDExOjQzICswODAwLCBNaW5nIExlaSB3cm90ZToNCj4gT24g V2VkLCBBdWcgMzAsIDIwMTcgYXQgMDQ6MzQ6NDdQTSArMDAwMCwgQmFydCBWYW4gQXNzY2hlIHdy b3RlOg0KPiA+IE9uIFN1biwgMjAxNy0wOC0yNyBhdCAwMDozMyArMDgwMCwgTWluZyBMZWkgd3Jv dGU6DQo+ID4gPiBkaWZmIC0tZ2l0IGEvaW5jbHVkZS9saW51eC9ibGstbXEuaCBiL2luY2x1ZGUv bGludXgvYmxrLW1xLmgNCj4gPiA+IGluZGV4IDUwYzY0ODVjYjA0Zi4uN2I3YTM2NmE5N2YzIDEw MDY0NA0KPiA+ID4gLS0tIGEvaW5jbHVkZS9saW51eC9ibGstbXEuaA0KPiA+ID4gKysrIGIvaW5j bHVkZS9saW51eC9ibGstbXEuaA0KPiA+ID4gQEAgLTMwLDYgKzMwLDggQEAgc3RydWN0IGJsa19t cV9od19jdHggew0KPiA+ID4gIA0KPiA+ID4gIAlzdHJ1Y3Qgc2JpdG1hcAkJY3R4X21hcDsNCj4g PiA+ICANCj4gPiA+ICsJc3RydWN0IGJsa19tcV9jdHgJKmRpc3BhdGNoX2Zyb207DQo+ID4gPiAr DQo+ID4gPiAgCXN0cnVjdCBibGtfbXFfY3R4CSoqY3R4czsNCj4gPiA+ICAJdW5zaWduZWQgaW50 CQlucl9jdHg7DQo+ID4gDQo+ID4gSGVsbG8gTWluZywNCj4gPiANCj4gPiBBcmUgeW91IHJlbHlp bmcgaGVyZSBvbiB0aGUgZmFjdCB0aGF0IHRoZSBwZXItQ1BVIHF1ZXVlcyBhcmUgbmV2ZXINCj4g PiByZWFsbG9jYXRlZCwgZXZlbiBpZiBDUFUgaG90LXBsdWdnaW5nIG9jY3Vycz8gU29ycnkgYnV0 IHRoYXQgc2VlbXMgZnJhZ2lsZQ0KPiA+IHRvIG1lLiBJIHdvdWxkIGxpa2UgdG8gc2VlICdkaXNw YXRjaF9mcm9tJyBiZSBjb252ZXJ0ZWQgaW50byBhbiBpbnRlZ2VyLiBJdA0KPiA+IGlzIGVhc3kg dG8gY2hlY2sgd2hldGhlciBhbiBpbnRlZ2VyIHNvZnR3YXJlIHF1ZXVlIGluZGV4IGlzIG91dCBv ZiByYW5nZQ0KPiA+IGJ1dCBpdCdzIG5vdCB0aGF0IGVhc3kgdG8gY2hlY2sgd2hldGhlciBhIHBv aW50ZXIgYmVjYW1lIGludmFsaWQuDQo+IA0KPiBJZiBDUFUgaG90cGx1ZyBoYXBwZW5zLCB0aGUg aW5zdGFuY2Ugb2YgJ3N0cnVjdCBibGtfbXFfY3R4JyBmb3IgdGhhdA0KPiBDUFUgaXMgc3RpbGwg dGhlcmUgYW5kIGl0cyBpbmRleCB3b24ndCBjaGFuZ2UgZnJvbSBiZWluZyBzZXR1cCBiZWNhdXNl DQo+IGl0cyBsaWZldGltZSBpcyBzYW1lIHdpdGggJ3N0cnVjdCByZXF1ZXN0X3F1ZXVlJywgYmxr X21xX2hjdHhfbm90aWZ5X2RlYWQoKQ0KPiBqdXN0IGZsdXNoZXMgdGhlIHN3IHF1ZXVlIHdoZW4g dGhlIENQVSBpcyBnb2luZyBhd2F5Lg0KPiANCj4gU28gd2UgZG9uJ3QgbmVlZCB0byBwYXkgc3Bl Y2lhbCBhdHRlbnRpb24gdG8gQ1BVIGhvdHBsdWcgaGVyZSwgcGxlYXNlIGxldA0KPiBtZSBrbm93 IGlmIHlvdSBhcmUgZmluZSBub3cuDQoNCkhlbGxvIE1pbmcsDQoNClRoYXQncyBhbHNvIGhvdyBJ IGludGVycHJldCB0aGUgYmxrLW1xIHNvdXJjZSBjb2RlLiBCdXQgaXQncyBwcm9iYWJseSBhIGdv b2QNCmlkZWEgdG8gYWRkIGEgc2hvcnQgY29tbWVudCB0aGF0IHRoZSBkaXNwYXRjaF9mcm9tIHBv aW50ZXIgaXMgbm90IGFmZmVjdGVkIGJ5DQpDUFUgaG90LXBsdWdnaW5nLiBBbnl3YXksIHdpdGgg b3Igd2l0aG91dCBzdWNoIGEgY29tbWVudDoNCg0KUmV2aWV3ZWQtYnk6IEJhcnQgVmFuIEFzc2No ZSA8YmFydC52YW5hc3NjaGVAd2RjLmNvbT4NCg0K