On Fri, 26 Nov 2021, Jens Axboe wrote: > Can you apply this on top of 5.16-rc2 or current -git and see if it fixes > it for you? Since it's related to writeback throttling, is there anything I can try to taunt it? I was thinking "iozone" or "bonnie++", but if there's something better, let me know. -Kenny -- Kenneth R. Crudup / Sr. SW Engineer, Scott County Consulting, Orange County CA