From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 06BC074047; Tue, 2 Jul 2024 07:32:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719905532; cv=none; b=OvO62cmax8M2GKtAhZTpx9uYAp1LE5T0i5QOMKQKt82Eu7XVrUikK8vPHYl4XLzfTAx6yZ0ZA6X9b6iNH7QdXsAC4p0NtgpGCGOxfX3+tImdOSMlk5o28pxMgDoUxd6ZEJwaVEY/B3KabdPI4RkpGgRGUQoEjFfgSNoRiMbEx0Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719905532; c=relaxed/simple; bh=+sMR8Y+fELBV98VkEZAmEYgkVwqnEdYtSXSzNoB2jX0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=lEgNYpEfVRJpi3fpemItYdBPZC818qgDpHPv++lA20MSyP3ZtHMJxN7DJLhv41LQOGinttCvLdRvuQls6x06GeWz5hPzqtcO96aPbabEizIAQMVGY3qJdn7dGDh7E7qygiHavAq8eeyRPdOJLjcn9a4pPGFFvm1/ysaGMTzY3DQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=nxBkkv55; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="nxBkkv55" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=yRJduJ4b13YGEVnBaImf8MBMoj+rPcyZfPfJ5uybrn0=; b=nxBkkv5533e0ibSUtWu/FWqca9 T02UNeMXerA742jTnmxcJDpprQYJhN+AB5mjSyF1tkFtaC9NWv/DI0JPbLwQgi37wPeed5cA37c0e +2f4q+qCCkqKwjebfWNgYqdh3KcmHS4SeimB2eXIojre3wqBiKfJ74iCTIY0nzAi/62xdvvQQ9QVV ggumCBVJg78P9RdScYdX17RSGD42SxwMGXnk/F0Te2sI20BEGRBsqQOtoGA/KEqDDyMxAk9wtOs1O z/1WMLlWsZ6latPxKW85ISPYOrT1dPDdYNH/mzAspCJntQyhFPayqTd56frrg1OjYGXYjfO03yN/a E+Zh4hIw==; Received: from hch by bombadil.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1sOXzk-00000005s56-0D5a; Tue, 02 Jul 2024 07:32:08 +0000 Date: Tue, 2 Jul 2024 00:32:07 -0700 From: Christoph Hellwig To: Oliver Sang Cc: Christoph Hellwig , oe-lkp@lists.linux.dev, lkp@intel.com, Jens Axboe , Ulf Hansson , Damien Le Moal , Hannes Reinecke , linux-block@vger.kernel.org, linux-um@lists.infradead.org, drbd-dev@lists.linbit.com, nbd@other.debian.org, linuxppc-dev@lists.ozlabs.org, virtualization@lists.linux.dev, xen-devel@lists.xenproject.org, linux-bcache@vger.kernel.org, dm-devel@lists.linux.dev, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, nvdimm@lists.linux.dev, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, ying.huang@intel.com, feng.tang@intel.com, fengwei.yin@intel.com Subject: Re: [axboe-block:for-next] [block] 1122c0c1cc: aim7.jobs-per-min 22.6% improvement Message-ID: References: <202406250948.e0044f1d-oliver.sang@intel.com> Precedence: bulk X-Mailing-List: linux-mmc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Mon, Jul 01, 2024 at 04:22:19PM +0800, Oliver Sang wrote: > from below, it seems the patchset doesn't introduce any performance improvement > but a regression now. is this expected? Not having the improvement at least alleviate my concerns about data integrity. I'm still curious where it comes from as it isn't exactly expected.