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!
