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[68.160.176.52]) by smtp.gmail.com with ESMTPSA id o200-20020a37a5d1000000b0064904a35862sm7092093qke.96.2022.03.01.13.19.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Mar 2022 13:19:43 -0800 (PST) Date: Tue, 1 Mar 2022 16:19:42 -0500 From: Mike Snitzer To: Ming Lei Message-ID: References: <20210623074032.1484665-1-ming.lei@redhat.com> MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 X-loop: dm-devel@redhat.com Cc: Jens Axboe , linux-block@vger.kernel.org, dm-devel@redhat.com, Jeffle Xu , Christoph Hellwig Subject: Re: [dm-devel] [PATCH V3 0/3] block/dm: support bio polling X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Mon, Feb 28 2022 at 7:58P -0500, Ming Lei wrote: > On Mon, Feb 28, 2022 at 11:27:44AM -0500, Mike Snitzer wrote: > > > > Hey Ming, > > > > I'd like us to follow-through with adding bio-based polling support. > > Kind of strange none of us that were sent this V3 ever responded, > > sorry about that! > > > > Do you have interest in rebasing this patchset (against linux-dm.git's > > "dm-5.18" branch since there has been quite some churn)? Or are you > > OK with me doing the rebase? > > Hi Mike, > > Actually I have one local v5.17 rebase: > > https://github.com/ming1/linux/tree/my_v5.17-dm-io-poll > > Also one for-5.18/block rebase which is done just now: > > https://github.com/ming1/linux/tree/my_v5.18-dm-bio-poll > > In my previous test on v5.17 rebase, the IOPS improvement is a bit small, > so I didn't post it out. Recently not get time to investigate > the performance further, so please feel free to work on it. OK, I've rebased it on dm-5.18. Can you please share the exact test(s) you were running? I assume you were running directly against a request-based device and then comparing polling perf through dm-linear to the same underlying request-based device? Thanks, Mike -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel 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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BF534C433F5 for ; Tue, 1 Mar 2022 21:19:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238538AbiCAVU3 (ORCPT ); Tue, 1 Mar 2022 16:20:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44606 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238537AbiCAVU1 (ORCPT ); Tue, 1 Mar 2022 16:20:27 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 0E1335AEE8 for ; Tue, 1 Mar 2022 13:19:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1646169585; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=zhGsISEne7ayegiBuC0VI77v51JSASEUVzAtdh+UqeM=; b=TWilmJOnfC4ne+Img1z+wb9bP3ype1/uCn+6yZdZ4v0XRK+hyf2gZvVjQURydYdDm8cq0k eCAtBMvHNo2z4NMUT7ZOWrGQqh+z1PcfGzJuQN5m5A0mm7yraX5FWHXExXArJhwUyAHaJY 27z5tj4y0fTeKWop2jSD2rNo51qRPaY= Received: from mail-qt1-f197.google.com (mail-qt1-f197.google.com [209.85.160.197]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-592-nDp-jSjVM5ONpOIf9DP07g-1; Tue, 01 Mar 2022 16:19:44 -0500 X-MC-Unique: nDp-jSjVM5ONpOIf9DP07g-1 Received: by mail-qt1-f197.google.com with SMTP id a6-20020a05622a02c600b002dd2d38f153so8201981qtx.17 for ; Tue, 01 Mar 2022 13:19:44 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=zhGsISEne7ayegiBuC0VI77v51JSASEUVzAtdh+UqeM=; b=qoXB7Yj0xS1XkKNjDeKK/UPqBw78SxcQBBKPE3yrdUOSXF8hd58YIxEEU/RmisAi9u 3GHOLembPt914C3fpGn+v2eXF14xw1BPgONSgbWwwBP/XOfRSetoRPQnDXBuEBbPqXXA eM9Laj1JoV8shM4NNh1HxBk00F846KP/C++v9FU9vJMjXAoR9i74xyonOhQ58XF0EOAM TaHmnK1UG+lVBkExz60taCzHwc0yZNOvIVnOEJkSpwNQEgkqxPPyWYuMiH39FjwZkpt7 CA37yk51syUFD07D+zhzg0tJlcZ6LS5MZ684cGaRxc/LLKMpYG5PBVJhS1UyKD7wWvyQ MKsg== X-Gm-Message-State: AOAM531lo2KjBJsoCWUg+7c7cXIqoGviKWSKeFBAqIKnfrpDFO3m35fn O2RU3KYxgD/KnhQWVEcL2o9Id+aMMoRzCqtkfPlUH39PD+5FXyylIl6aeCQsJyVtAGH/B3gTbl9 eqHjVCFjKOzLzC2Ava/uakg== X-Received: by 2002:a37:464c:0:b0:60b:6be8:29ae with SMTP id t73-20020a37464c000000b0060b6be829aemr14693624qka.126.1646169583744; Tue, 01 Mar 2022 13:19:43 -0800 (PST) X-Google-Smtp-Source: ABdhPJxdhhv8FXLh+s6pIY25DENmaFxbVp4vb4H3/pCOuTKcqaohrWojF+hMg+3FnTB0/X5W7hjY7g== X-Received: by 2002:a37:464c:0:b0:60b:6be8:29ae with SMTP id t73-20020a37464c000000b0060b6be829aemr14693615qka.126.1646169583532; Tue, 01 Mar 2022 13:19:43 -0800 (PST) Received: from localhost (pool-68-160-176-52.bstnma.fios.verizon.net. [68.160.176.52]) by smtp.gmail.com with ESMTPSA id o200-20020a37a5d1000000b0064904a35862sm7092093qke.96.2022.03.01.13.19.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Mar 2022 13:19:43 -0800 (PST) Date: Tue, 1 Mar 2022 16:19:42 -0500 From: Mike Snitzer To: Ming Lei Cc: Jens Axboe , linux-block@vger.kernel.org, Jeffle Xu , dm-devel@redhat.com, Hannes Reinecke , Christoph Hellwig Subject: Re: [PATCH V3 0/3] block/dm: support bio polling Message-ID: References: <20210623074032.1484665-1-ming.lei@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Mon, Feb 28 2022 at 7:58P -0500, Ming Lei wrote: > On Mon, Feb 28, 2022 at 11:27:44AM -0500, Mike Snitzer wrote: > > > > Hey Ming, > > > > I'd like us to follow-through with adding bio-based polling support. > > Kind of strange none of us that were sent this V3 ever responded, > > sorry about that! > > > > Do you have interest in rebasing this patchset (against linux-dm.git's > > "dm-5.18" branch since there has been quite some churn)? Or are you > > OK with me doing the rebase? > > Hi Mike, > > Actually I have one local v5.17 rebase: > > https://github.com/ming1/linux/tree/my_v5.17-dm-io-poll > > Also one for-5.18/block rebase which is done just now: > > https://github.com/ming1/linux/tree/my_v5.18-dm-bio-poll > > In my previous test on v5.17 rebase, the IOPS improvement is a bit small, > so I didn't post it out. Recently not get time to investigate > the performance further, so please feel free to work on it. OK, I've rebased it on dm-5.18. Can you please share the exact test(s) you were running? I assume you were running directly against a request-based device and then comparing polling perf through dm-linear to the same underlying request-based device? Thanks, Mike