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=-8.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 619ADC433E1 for ; Mon, 20 Jul 2020 14:16:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4652F20B1F for ; Mon, 20 Jul 2020 14:16:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728403AbgGTOQP (ORCPT ); Mon, 20 Jul 2020 10:16:15 -0400 Received: from mx2.suse.de ([195.135.220.15]:38402 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725970AbgGTOQP (ORCPT ); Mon, 20 Jul 2020 10:16:15 -0400 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 3C9F9B6D1; Mon, 20 Jul 2020 14:16:20 +0000 (UTC) Received: by ds.suse.cz (Postfix, from userid 10065) id 1BFA0DA7CF; Mon, 20 Jul 2020 16:15:49 +0200 (CEST) Date: Mon, 20 Jul 2020 16:15:48 +0200 From: David Sterba To: fdmanana@kernel.org Cc: linux-btrfs@vger.kernel.org Subject: Re: [PATCH] btrfs: reduce contention on log trees when logging checksums Message-ID: <20200720141548.GE3703@twin.jikos.cz> Reply-To: dsterba@suse.cz Mail-Followup-To: dsterba@suse.cz, fdmanana@kernel.org, linux-btrfs@vger.kernel.org References: <20200715113043.3192206-1-fdmanana@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200715113043.3192206-1-fdmanana@kernel.org> User-Agent: Mutt/1.5.23.1-rc1 (2014-03-12) Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Wed, Jul 15, 2020 at 12:30:43PM +0100, fdmanana@kernel.org wrote: > From: Filipe Manana > **** 16 jobs, file size 1G, fsync frequency 1 **** > (+40.1% throughput, -28.5% runtime) > **** 32 jobs, file size 1G, fsync frequency 1 **** > (+29.4% throughput, -22.7% runtime) > **** 64 jobs, file size 512M, fsync frequency 1 **** > (+29.3% throughput, -22.7% runtime) > **** 128 jobs, file size 256M, fsync frequency 1 **** > (+121.2% throughput, -54.6% runtime) > **** 256 jobs, file size 256M, fsync frequency 1 **** > (+74.9% throughput, -42.8% runtime) > **** 512 jobs, file size 128M, fsync frequency 1 **** > (+65.1% throughput, -39.3% runtime) > **** 1024 jobs, file size 128M, fsync frequency 1 **** > (+48.7% throughput, -33.1% runtime) > > Signed-off-by: Filipe Manana Some nice numbers to mention in the merge log, thanks.