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

Christoph Hellwig
2024-06-26T06:18:08Z

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!