From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Bottomley Subject: Re: [LSF/MM TOPIC] Two blk-mq related topics Date: Mon, 29 Jan 2018 12:56:30 -0800 Message-ID: <1517259390.3969.41.camel@HansenPartnership.com> References: <20180129154455.GB17176@ming.t460p> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Received: from bedivere.hansenpartnership.com ([66.63.167.143]:39692 "EHLO bedivere.hansenpartnership.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751900AbeA2U4d (ORCPT ); Mon, 29 Jan 2018 15:56:33 -0500 In-Reply-To: <20180129154455.GB17176@ming.t460p> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Ming Lei , lsf-pc@lists.linux-foundation.org, Linux-scsi@vger.kernel.org, linux-block@vger.kernel.org, linux-nvme@lists.infradead.org On Mon, 2018-01-29 at 23:46 +0800, Ming Lei wrote: [...] > 2. When to enable SCSI_MQ at default again? I'm not sure there's much to discuss ... I think the basic answer is as soon as Christoph wants to try it again. > SCSI_MQ is enabled on V3.17 firstly, but disabled at default. In > V4.13-rc1, it is enabled at default, but later the patch is reverted > in V4.13-rc7, and becomes disabled at default too. > > Now both the original reported PM issue(actually SCSI quiesce) and > the sequential IO performance issue have been addressed. Is the blocker bug just not closed because no-one thought to do it: https://bugzilla.kernel.org/show_bug.cgi?id=178381 (we have confirmed that this issue is now fixed with the original reporter?) And did the Huawei guy (Jonathan Cameron) confirm his performance issue was fixed (I don't think I saw email that he did)? James