On Tue, Sep 08, 2015 at 01:02:26PM -0400, Tejun Heo wrote:

Hello,

On Tue, Sep 08, 2015 at 09:56:22AM -0700, Shaohua Li wrote:

quoted

I'll benchmark on a SSD from another vendor, which supports FUA, but FUA
write has poor performance in my last test.

lolwut?  Was it slower than write + flush?

I need double confirm. But for write + flush, we aggregrate several
writes and do a flush; for FUA, we do every meta write with FUA. So this
is not apple to apple comparison.

Thanks,
Shaohua