On Fri, Mar 4, 2022 at 10:04 AM Yin, Congmin <congmin.yin@xxxxxxxxx> wrote:
>
> Hi Ilya,
>
>
>
> Consult a performance question. It is the way of creating bdev that SSD mode of pwl cache is using.
>
> Is it appropriate to create bdev devices by truncate files on the file system? Is there a performance gap compared with directly creating bdev device by using /dev /nvme0n1?
I think the file system is used because each RBD image gets should get
its own cache. What would handle partitioning the block device between
RBD images otherwise?
Thanks,
Ilya
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