Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753600AbaGJPwh (ORCPT ); Thu, 10 Jul 2014 11:52:37 -0400 Received: from g4t3425.houston.hp.com ([15.201.208.53]:52640 "EHLO g4t3425.houston.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752220AbaGJPwf convert rfc822-to-8bit (ORCPT ); Thu, 10 Jul 2014 11:52:35 -0400 From: "Elliott, Robert (Server Storage)" To: Christoph Hellwig CC: Jens Axboe , "dgilbert@interlog.com" , James Bottomley , Bart Van Assche , Benjamin LaHaise , "linux-scsi@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: RE: scsi-mq V2 Thread-Topic: scsi-mq V2 Thread-Index: AQHPkJV9pCazJa2BBk+bOfxdnvD3mpuWVjGAgAGxWICAADHvAIAAUqSAgABg3QCAAJeNgA== Date: Thu, 10 Jul 2014 15:51:44 +0000 Message-ID: <94D0CD8314A33A4D9D801C0FE68B402958B96E3B@G9W0745.americas.hpqcorp.net> References: <1403715121-1201-1-git-send-email-hch@lst.de> <20140708144829.GA5539@infradead.org> <53BD7041.5010300@interlog.com> <53BD9A24.7010203@kernel.dk> <94D0CD8314A33A4D9D801C0FE68B402958B9628B@G9W0745.americas.hpqcorp.net> <20140710062040.GB20146@infradead.org> In-Reply-To: <20140710062040.GB20146@infradead.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [16.210.48.37] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > -----Original Message----- > From: Christoph Hellwig [mailto:hch@infradead.org] > Sent: Thursday, 10 July, 2014 1:21 AM > To: Elliott, Robert (Server Storage) > Cc: Jens Axboe; dgilbert@interlog.com; Christoph Hellwig; James Bottomley; > Bart Van Assche; Benjamin LaHaise; linux-scsi@vger.kernel.org; linux- > kernel@vger.kernel.org > Subject: Re: scsi-mq V2 > > On Thu, Jul 10, 2014 at 12:53:36AM +0000, Elliott, Robert (Server Storage) > wrote: > > the problem still occurs - fio results in low or 0 IOPS, with perf top > > reporting unusual amounts of time spent in do_io_submit and io_submit. > > The diff between the two version doesn't show too much other possible > interesting commits, the most interesting being some minor block > updates. > > I guess we'll have to a manual bisect, I've pushed out a > scsi-mq.3-bisect-1 branch that is rebased to just before the merge of > the block tree good. > and a scsi-mq.3-bisect-2 branch that is just after the merge of the > block tree to get started. good. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/