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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 0C9CDC433DB for ; Mon, 1 Feb 2021 21:58:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BCCD664E50 for ; Mon, 1 Feb 2021 21:58:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229546AbhBAV6i (ORCPT ); Mon, 1 Feb 2021 16:58:38 -0500 Received: from mx2.suse.de ([195.135.220.15]:48232 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229854AbhBAV6h (ORCPT ); Mon, 1 Feb 2021 16:58:37 -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 52FB4AC45; Mon, 1 Feb 2021 21:57:54 +0000 (UTC) Received: by ds.suse.cz (Postfix, from userid 10065) id AC4EFDA6FC; Mon, 1 Feb 2021 22:56:04 +0100 (CET) Date: Mon, 1 Feb 2021 22:56:04 +0100 From: David Sterba To: fdmanana@kernel.org Cc: linux-btrfs@vger.kernel.org Subject: Re: [PATCH 0/7] btrfs: more performance improvements for dbench workloads Message-ID: <20210201215604.GW1993@twin.jikos.cz> Reply-To: dsterba@suse.cz Mail-Followup-To: dsterba@suse.cz, fdmanana@kernel.org, linux-btrfs@vger.kernel.org References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23.1-rc1 (2014-03-12) Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Wed, Jan 27, 2021 at 10:34:53AM +0000, fdmanana@kernel.org wrote: > From: Filipe Manana > > The following patchset brings one more batch of performance improvements > with dbench workloads, or anything that mixes file creation, file writes, > renames, unlinks, etc with fsync like dbench does. This patchset is mostly > based on avoiding logging directory inodes multiple times when not necessary, > falling back to transaction commits less frequently and often waiting less > time for transaction commits to complete. Performance results are listed in > the change log of the last patch, but in short, I've experienced a reduction > of maximum latency up to about -40% and throuhput gains up to about +6%. Nice, added to misc-next, thanks.