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=-11.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 D24C9C47095 for ; Wed, 9 Jun 2021 05:48:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B717D61352 for ; Wed, 9 Jun 2021 05:48:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232986AbhFIFuF (ORCPT ); Wed, 9 Jun 2021 01:50:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:53268 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230152AbhFIFuE (ORCPT ); Wed, 9 Jun 2021 01:50:04 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id C437661352 for ; Wed, 9 Jun 2021 05:48:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1623217690; bh=659FVspzmEGIMMAwVy9Fp41i0JjGGkpOz0Fh4e/poDI=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=XrG/saKM5cIei15HyU83sK46sZrtVx2hHEuVB8zfe7Ha2kaeFnJyL4B3q0WExJTUE zFSFm2T28+3+PCzhqoD+bVQ9GLm7SSjFFI8kIh1vNwwqUf+8hZ+s5e9GQtcm8qxr5l 5j8jRQRIrYCd5BDeXS6oGk/e9SlYTm+NLQAwq8dcW7+Q6/ajuj7RfFHqps59cxVL+O 216oTVzkmV5EAKXfEuZyjZJi/bOuzjxbOdH2FF6SOk+us7PcrCfdcLvp5+qsZEjFpn I6vJbxtDXXtT1EQgPsvjhL90of8/C8QqROSt6OX0MS8CUmbE+n4Mcw0vV7nRQlxoTD 82YVG47hb1dkA== Received: by mail-lf1-f53.google.com with SMTP id i10so36061328lfj.2 for ; Tue, 08 Jun 2021 22:48:10 -0700 (PDT) X-Gm-Message-State: AOAM532tqovxk0r3QerCLC/EMkdqvOnIbvmZutNMxBK0YwEl9xSfEqEo xbVzyqn4bM3vs757h50pTaDdi5xLnoHb+8pP8MU= X-Google-Smtp-Source: ABdhPJx8MEXilyL07wXTur+TJ623jho/vPw9DEvOzVOIeETzW4MELzFahpB2RkzMvqfh+5+TPGvfpb/D6hLSAxgiLrc= X-Received: by 2002:a05:6512:3713:: with SMTP id z19mr2411397lfr.438.1623217689098; Tue, 08 Jun 2021 22:48:09 -0700 (PDT) MIME-Version: 1.0 References: <162302508816.16225.936948442459930625@noble.neil.brown.name> <20210607110702.660443-1-gal.ofri@storing.io> <162306497207.32569.4821556528932781303@noble.neil.brown.name> In-Reply-To: <162306497207.32569.4821556528932781303@noble.neil.brown.name> From: Song Liu Date: Tue, 8 Jun 2021 22:47:58 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH v2] md/raid5: avoid device_lock in read_one_chunk() To: NeilBrown Cc: linux-raid , Gal Ofri Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-raid@vger.kernel.org On Mon, Jun 7, 2021 at 4:22 AM NeilBrown wrote: > > On Mon, 07 Jun 2021, gal.ofri@storing.io wrote: [...] > > ----------------------------------------------- > > without patch | 2M | ~80% | 24GB/s > > with patch | 4M | 0% | 55GB/s > > > > CC: Song Liu > > CC: Neil Brown > > Signed-off-by: Gal Ofri > > Reviewed-by: NeilBrown Applied to md-next. Thanks! Song