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 6035E1CFB2 for ; Tue, 14 May 2024 11:52:48 +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=1715687569; cv=none; b=kcxK4FaIc5IpnmZNtHThAIULDjo6n8C3Rqke0h8TBRQ5z8TtLTaG3/fcyTpxHralKwLw9Xoni7XX4slPUAixr0VoI2p68ZeL9lUyYJ4GBV4/C+UpUrkk8YQZwjNHN0e93tmdKd9ojLkWJRFjAa3YP2zm+ByiaCCzna80stbya54= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715687569; c=relaxed/simple; bh=HiXwcTk6UFYBZRAuzSGxUc9qpaTdD3aCKv3Rx9j/tAM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=dQ3bvxaYGrEGEb2tZPxOXoQxDXtg0iLhzQc0nxXaF+u3Rrzrl8O6S8+o9I9gKPpnDTPOs0qXu4uiMkxglaYb9kHm0y1cJhSHJlVHVjwJOUSAagDFZBPJEXxFsu1laKxl7UpAuUMQpk9axmW4OAi9HwW6pKbAzs19OWnq6JGo6gM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=xr3iG3WN; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="xr3iG3WN" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=4MxgHTaCvCMljpk7HMjhLlTKEMZ68z6Aw8VilYkQYs0=; b=xr3iG3WNTrU/FWXOfM/UctFmoI Au/LGMzyvwr4V5pMNi6Ud2wG5JHcVj9vXCg79JL+wOewgDV6str72/oFYIJ4tLfy0mxZ9pFLWt9DW QctpNOcAYCBv3rDOHCq660jGgptgkaUAmG2Ny2Bf+CUe1dlOD6wFs3cpnKERNaoGOTiZ9J2KAn6XX TzRIXLBNfU2f06byL0yJO/rvVlKsEONtzLyfcWcchG6nym7JQsLipKumAIBf8oqauU7/SF/sp7DN9 Hme6IgCc+Izjy03HdACFMGaTVVSN/KzaCwhZWtldA5yKNSaFtPfT4RQqSzUk30m3aV0B77GedJyuB GKJFF3Eg==; Received: from mcgrof by bombadil.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1s6qi1-0000000FmIp-2E7x; Tue, 14 May 2024 11:52:41 +0000 Date: Tue, 14 May 2024 04:52:41 -0700 From: Luis Chamberlain To: Linus Torvalds Cc: Al Viro , Kent Overstreet , Matthew Wilcox , lsf-pc@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-mm , Daniel Gomez , Pankaj Raghav , Jens Axboe , Dave Chinner , Christoph Hellwig , Chris Mason , Johannes Weiner Subject: Re: [LSF/MM/BPF TOPIC] Measuring limits and enhancing buffered IO Message-ID: References: Precedence: bulk X-Mailing-List: linux-fsdevel@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: Sender: Luis Chamberlain On Mon, Feb 26, 2024 at 02:46:56PM -0800, Linus Torvalds wrote: > I really haven't tested this AT ALL. I'm much too scared. But I don't > actually hate how the code looks nearly as much as I *thought* I'd > hate it. Thanks for this, obviously those interested in this will have to test this and fix the below issues. I've tested for regressions just against xfs on 4k reflink profile and detected only two failures, generic/095 fails with a failure rate of about 1/2 or so: * generic/095 * generic/741 For details refer to the test result archive [0]. To reproduce with kdevops: make defconfig-xfs_reflink_4k KDEVOPS_HOSTS_PREFIX=hacks B4_MESSAGE_ID=20240514084221.3664475-1-mcgrof@kernel.org make -j $(nproc) make bringup make fstests make linux make fstests-baseline TESTS=generic/095 COUNT=10 [0] https://github.com/linux-kdevops/kdevops-results-archive/commit/27186b2782af4af559524539a2f6058d12361e10 Luis