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From: Christoph Hellwig <hch@lst.de>
To: kernel test robot <oliver.sang@intel.com>
Subject: Re: [axboe-block:for-next] [block]  bd4a633b6f:
 fsmark.files_per_sec -64.5% regression
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This is odd to say at least.  Any chance you can check the value
of /sys/block/$DEVICE/queue/rotational for the relevant device before
and after this commit?  And is this an ATA or NVMe SSD?