From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Paolo Valente In-Reply-To: <46f16799-86d9-7bf5-6346-be08801dd48e@suse.de> Date: Sat, 18 Mar 2017 07:15:52 -0400 Message-Id: References: <46f16799-86d9-7bf5-6346-be08801dd48e@suse.de> To: Hannes Reinecke Cc: linux-block@vger.kernel.org, lsf@lists.linux-foundation.org, Omar Sandoval , kernel-team@fb.com Subject: Re: [Lsf] [RFC PATCH 0/4] blk-mq: multiqueue I/O scheduler List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="windows-1252" Sender: lsf-bounces@lists.linux-foundation.org Errors-To: lsf-bounces@lists.linux-foundation.org List-ID: > Il giorno 18 mar 2017, alle ore 07:14, Hannes Reinecke ha = scritto: > = > On 03/17/2017 11:03 PM, Omar Sandoval wrote: >> From: Omar Sandoval >> = >> This patch series implements an I/O scheduler for multiqueue devices >> combining several techniques: the scalable bitmap library, the new >> blk-stats API, and queue depth throttling similar to blk-wbt. >> = >> These patches are on top of my earlier blk-stats series [1]. They also >> need a fix in Jens' for-linus branch in order to work properly [2]. >> = >> Patches 1 and 2 implement a new sbitmap operation and patch 3 exports a >> required function. Patch 4 implements the new scheduler, named Kyber. >> = >> The commit message in patch 4 describes Kyber in detail. The scheduler >> employs some heuristics that I've experimented with, but that's probably >> the area that needs the most work. I'll be at LSF/MM next week, and >> there's currently a lightning talk on the schedule to discuss >> improvements and extensions. >> = > [ .. ] > = > A silent round of applause for you. > Very much appreciated. > = > And actually, I have been looking at properly supporting host-wide tag > maps, so the concept of 'shallow' queue depth might be the way to go here. > = > And as I have some other questions, too (assigning a new tag on > requeue?) it might be an idea to spread this out into a formal session > at LSF. If there are some slots left, that is. > = I would be very interested in such a discussion too. Thanks, Paolo > Cheers, > = > Hannes > -- = > Dr. Hannes Reinecke zSeries & Storage > hare@suse.de +49 911 74053 688 > SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 N=FCrnberg > GF: J. Hawn, J. Guild, F. Imend=F6rffer, HRB 16746 (AG N=FCrnberg) > _______________________________________________ > Lsf mailing list > Lsf@lists.linux-foundation.org > https://lists.linuxfoundation.org/mailman/listinfo/lsf _______________________________________________ Lsf mailing list Lsf@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/lsf