Re: [axboe-block:for-next] [block] bd4a633b6f: fsmark.files_per_sec -64.5% regression

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On Wed, Jun 26, 2024 at 02:11:11PM +0800, Oliver Sang wrote:
> hi, Christoph Hellwig,
> 
> On Mon, Jun 24, 2024 at 10:35:37AM +0200, Christoph Hellwig wrote:
> > This is odd to say at least.  Any chance you can check the value
> > of /sys/block/$DEVICE/queue/rotational for the relevant device before
> > and after this commit?  And is this an ATA or NVMe SSD?
> > 
> 
> yeah, as Niklas mentioned, it's an ATA SSD.
> 
> I checked the /sys/block/$DEVICE/queue/rotational before and after this commit,
> both show '0'. not sure if this is expected.
> 
> anyway, I noticed you send a patch [1]
> 
> so I applied this patch upon bd4a633b6f, and found the performance restored.

Thanks for testing!





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