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Date: Tue, 17 Dec 2024 05:55:28 +0100
From: Christoph Hellwig <hch@lst.de>
To: kernel test robot <oliver.sang@intel.com>
Cc: Christoph Hellwig <hch@lst.de>, oe-lkp@lists.linux.dev, lkp@intel.com,
	linux-kernel@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
	linux-block@vger.kernel.org, virtualization@lists.linux.dev,
	linux-nvme@lists.infradead.org
Subject: Re: [linus:master] [block]  e70c301fae: stress-ng.aiol.ops_per_sec
 49.6% regression
Message-ID: <20241217045527.GA16091@lst.de>
References: <202412122112.ca47bcec-lkp@intel.com> <20241213143224.GA16111@lst.de>
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On Fri, Dec 13, 2024 at 03:32:24PM +0100, Christoph Hellwig wrote:
> On Thu, Dec 12, 2024 at 09:51:45PM +0800, kernel test robot wrote:
> > 
> > 
> > Hello,
> > 
> > kernel test robot noticed a 49.6% regression of stress-ng.aiol.ops_per_sec on:
> 
> This sounds like there is some other I/O path that still reorders,
> which got messed up.  What storage driver is this using?  The repro
> material talks about an ata disk, but I'm still curious if it's ahci
> or some other driver, or a SAS HBA?

Do you have the information on what hardware is used for this test?