On 2020-08-10 Gilbert E. Detillieux wrote:
It also doesn't seem to have caused a noticeable performance hit. I'm thinking we were disk I/O bound on the remote (receiving) end, anyway, so if the network I/O is a bit slower, we wouldn't see it.
The offload is barely noticeable with modern-ish CPUs with a zillion cores. I guess if you're maxing out 10Gb links maybe you'd notice it a touch.
As for the problem being solved... I can now virtually guarantee you that somewhere on your board is bad caps. If the system used to run this load without problem, then started having this problem (as opposed to the system always having this problem), then it's caps. You may have solved this weird issue for now, but the caps will slowly get worse and other weird things will occur. If you ever take a peek inside, let us know!