From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Martin K. Petersen" Subject: Re: [PATCH] scsi: switch to scsi-mq by default Date: Tue, 10 Jul 2018 22:52:21 -0400 Message-ID: References: <20180704085356.10888-1-jthumshirn@suse.de> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20180704085356.10888-1-jthumshirn@suse.de> (Johannes Thumshirn's message of "Wed, 4 Jul 2018 10:53:56 +0200") Sender: linux-kernel-owner@vger.kernel.org To: Johannes Thumshirn Cc: "Martin K . Petersen" , Hannes Reinecke , Bart Van Assche , Ming Lei , Linux SCSI Mailinglist , Linux Kernel Mailinglist List-Id: linux-scsi@vger.kernel.org Johannes, > It has been more than one year since we tried to change the default > from legacy to multi queue in SCSI with commit c279bd9e406 ("scsi: > default to scsi-mq"). But due to issues with suspend/resume and > performance problems it had been reverted again with commit > cbe7dfa26eee ("Revert "scsi: default to scsi-mq""). > > In the meantime there have been a substantial amount of performance > improvements and suspend/resume got fixed as well, thus we can > re-enable scsi-mq without a significant performance penalty. Applied to 4.19/scsi-queue, thanks! -- Martin K. Petersen Oracle Linux Engineering