Hi,
Since 6.11.5 upgrades, each time I run a parity check, write to the array or use the mover, the parities are running at 60-70MB/s, while before the upgrade, it was at 170-180MB/s.
The system is all connected on SAS3 equipment, but we've seen the same issues on Discord with others running SAS2, or Direct connect.
I included my diagnostics, and others will do as well, as we talked on Discord to give as much data points about this.
I don't spindown or anything. I run write reconstruct all the time, but it's almost like the setting doesn't work at all anymore.
This is a bug that impacts AMD only. There was a regression in kernel 5.19 about dummy waits that caused to impact AMD CPUs. (https://www.phoronix.com/news/Linux-6.0-AMD-Chipset-WA)
Thanks.
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