Hi Shlomo,
On Wed, 17 Jul 2024 07:09:52 +0300 Shlomo Solomon shlomo.solomon@gmail.com wrote:
Strange to ask this about Linux (Kubuntu 22.04 with all updates), but: Occasionally my always on machine starts working VERY slowly. No strange CPU or memory use in top. Nothing unusual in logs (maybe I'm not looking in the right places). Re-boot solves the problem.
did you try iotop ( https://www.geeksforgeeks.org/iotop-command-in-linux-with-examples/ ) and PowerTOP ( https://github.com/fenrus75/powertop ) yet? Maybe "sensors" from lm-sensors will help too.
As "proof" that there was something wrong, shut-down takes several minutes!! And the boot then works reasonably fast. I tried re-booting when there was NOT a problem and then the machine shut down in a few seconds.
What am I missing?