From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F0073C4361B for ; Thu, 17 Dec 2020 16:50:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B94E7208BA for ; Thu, 17 Dec 2020 16:50:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728683AbgLQQuV (ORCPT ); Thu, 17 Dec 2020 11:50:21 -0500 Received: from mx2.suse.de ([195.135.220.15]:43680 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727368AbgLQQuV (ORCPT ); Thu, 17 Dec 2020 11:50:21 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id D80F5ACA5; Thu, 17 Dec 2020 16:49:39 +0000 (UTC) Date: Thu, 17 Dec 2020 17:49:39 +0100 From: Daniel Wagner To: Jens Axboe Cc: Sebastian Andrzej Siewior , linux-block@vger.kernel.org, Thomas Gleixner , Peter Zijlstra , Mike Galbraith , Christoph Hellwig , Sagi Grimberg Subject: Re: [PATCH 2/3] blk-mq: Always complete remote completions requests in softirq Message-ID: <20201217164939.z4zjhycpxsyqvvcd@beryllium.lan> References: <20201204191356.2516405-1-bigeasy@linutronix.de> <20201204191356.2516405-3-bigeasy@linutronix.de> <20201208082220.hhel5ubeh4uqrwnd@linutronix.de> <20201208084409.koeftbpnvesp4xtv@beryllium.lan> <243c7259-0b1b-b239-4f0f-650520333392@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <243c7259-0b1b-b239-4f0f-650520333392@kernel.dk> Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Thu, Dec 17, 2020 at 09:45:47AM -0700, Jens Axboe wrote: > On 12/8/20 1:44 AM, Daniel Wagner wrote: > > It looks like the patched version show tiny bit better numbers for this > > workload. slat seems to be one of the major difference between the two > > runs. But that is the only thing I really spotted to be really off. > > slat is the same, just one is in nsec and the other is in usec. Ah, good eyes. Need to remember this :) > > I keep going with some more testing. Let what kind of tests you would > > also want to see. I'll do a few plain NVMe tests next. > > This is a good test, thanks. Got sidetracked. Haven't started yet with these tests.