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=-5.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 DDAB0C4361B for ; Thu, 17 Dec 2020 16:46:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A029220637 for ; Thu, 17 Dec 2020 16:46:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728161AbgLQQqa (ORCPT ); Thu, 17 Dec 2020 11:46:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57516 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726548AbgLQQqa (ORCPT ); Thu, 17 Dec 2020 11:46:30 -0500 Received: from mail-io1-xd35.google.com (mail-io1-xd35.google.com [IPv6:2607:f8b0:4864:20::d35]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C7F32C061794 for ; Thu, 17 Dec 2020 08:45:49 -0800 (PST) Received: by mail-io1-xd35.google.com with SMTP id i18so28133881ioa.1 for ; Thu, 17 Dec 2020 08:45:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=5IXKKZuCItJr6HUat/eaBFpMBwHh3XuMNTFBubYuNCg=; b=UgEabXsZy5DL4psNz3csEJEPIqNaJBAIGeahXysfcT7lfLIJRYxS19ZyWbsITmmwxv 7iAKU4M2fbaJ9myBmSr9Fgtu9ymaM1ggQ/sCZIeJLPUAuNYtIZTbD6R8fI1z/Y0II0aM DO+hA1OVN1vkNOUytJKe8nQh4OvhOeyPyp14bhIGGu+zk7YwKshiOAMEUqn2I/CtH9jd Gl1u3zRMRb6lzo8dXEAk/E/vVdrOBximfJWBIPnz+vHeUWBI7n4UPzDzn1kWkGbiyjUC T90Q4RVg3vVzKx1PrUzQ+FNggI0BLnQRwIbq6pmdutMY+ocPeDbvJbDFTwofKG00bBKk vKeA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=5IXKKZuCItJr6HUat/eaBFpMBwHh3XuMNTFBubYuNCg=; b=CS2bfi7VCjgtl7OYf9soWKi6N9wv4fCllrr5VWKWEvK6dp3nKjtTMIGyyigBvjOD2S /J1MJllEjnP74sjT5UzuQU1AhDBVRH4raJwmka2nrlH3chn+8+MoORtm0jRSsTggZRNI 7FJgZ3m/ywAe60j7rY+Z7oWFvGGXglB+Z9aeU9RXq0CuBa1h+eGh/ofK8lwstn7HqV2U tpTl1h5pUyHk5xme02moZclt8rpZEu5asOlKIPcDrcj6I95HN3o00N9ft/NHReerY+JR XQlixAzAr/sjcuheNedsK7kgI7UYngzYReca/mCj6RkblgxIn1tVCkIS1jvnMcbLHLMU DwAw== X-Gm-Message-State: AOAM531WT2gFL3cK1YVLgg+pUJKWj2VQtNFqj2svRxVgpFFwvVq7A0XR puCG4LKCIofgvLnLsHjcYg7TGw== X-Google-Smtp-Source: ABdhPJw613pHBJGKBCAmyBeEmTZG7KwXB+c7zyG1x0Dh2dMamuv7l/kTzPZ9z9UGOxppwugRKmSRdA== X-Received: by 2002:a02:9691:: with SMTP id w17mr48102236jai.9.1608223548877; Thu, 17 Dec 2020 08:45:48 -0800 (PST) Received: from [192.168.1.30] ([65.144.74.34]) by smtp.gmail.com with ESMTPSA id f6sm14057532ioh.2.2020.12.17.08.45.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 17 Dec 2020 08:45:48 -0800 (PST) Subject: Re: [PATCH 2/3] blk-mq: Always complete remote completions requests in softirq To: Daniel Wagner , Sebastian Andrzej Siewior Cc: linux-block@vger.kernel.org, Thomas Gleixner , Peter Zijlstra , Mike Galbraith , Christoph Hellwig , Sagi Grimberg References: <20201204191356.2516405-1-bigeasy@linutronix.de> <20201204191356.2516405-3-bigeasy@linutronix.de> <20201208082220.hhel5ubeh4uqrwnd@linutronix.de> <20201208084409.koeftbpnvesp4xtv@beryllium.lan> From: Jens Axboe Message-ID: <243c7259-0b1b-b239-4f0f-650520333392@kernel.dk> Date: Thu, 17 Dec 2020 09:45:47 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201208084409.koeftbpnvesp4xtv@beryllium.lan> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org 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. > 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. -- Jens Axboe