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. 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?
Would u attach the journalctl logs of this time excatly when u feel the slow time. Use tag - - since - - until
On Wed, Jul 17, 2024, 07:10 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. 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?
-- Shlomo Solomon http://the-solomons.net Claws Mail 4.0.0 - KDE Plasma 5.24.7 - Kubuntu 22.04 _______________________________________________ Linux-il mailing list -- linux-il@cs.huji.ac.il To unsubscribe send an email to linux-il-leave@cs.huji.ac.il
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?
This used to happen to me on a Dell laptop, when the laptop would warm up, and the CPU got automatically transferred into a lower C-state. An extra USB fan I placed under the laptop solved the problem. You can also manually change the C-state, but I guess the CPU will not like it. Orna
On Wed, Jul 17, 2024 at 7:10 AM 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. 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?
-- Shlomo Solomon http://the-solomons.net Claws Mail 4.0.0 - KDE Plasma 5.24.7 - Kubuntu 22.04 _______________________________________________ Linux-il mailing list -- linux-il@cs.huji.ac.il To unsubscribe send an email to linux-il-leave@cs.huji.ac.il
Thanks - not sure attachments are allowed on the list and the output is quite long, so I will send you privately
On Wed, 17 Jul 2024 07:48:30 +0300 Yaniv Haliwa yaniv992@gmail.com wrote:
Would u attach the journalctl logs of this time excatly when u feel the slow time. Use tag - - since - - until
On Wed, Jul 17, 2024, 07:10 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. 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?
-- Shlomo Solomon http://the-solomons.net Claws Mail 4.0.0 - KDE Plasma 5.24.7 - Kubuntu 22.04 _______________________________________________ Linux-il mailing list -- linux-il@cs.huji.ac.il To unsubscribe send an email to linux-il-leave@cs.huji.ac.il
Thanks - I'll try this next time I have a problem
On Wed, 17 Jul 2024 07:56:50 +0300 Shlomi Fish shlomif@shlomifish.org wrote:
Hi Shlomo,
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.
Thanks, but unlikely - this is a desktop (not a laptop). And I do not see any evidence of over-heating.
On Wed, 17 Jul 2024 08:10:13 +0300 Orna Agmon Ben-Yehuda ladypine@gmail.com wrote:
This used to happen to me on a Dell laptop, when the laptop would warm up, and the CPU got automatically transferred into a lower C-state. An extra USB fan I placed under the laptop solved the problem. You can also manually change the C-state, but I guess the CPU will not like it. Orna
On Wed, Jul 17, 2024 at 7:10 AM 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. 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?
-- Shlomo Solomon http://the-solomons.net Claws Mail 4.0.0 - KDE Plasma 5.24.7 - Kubuntu 22.04 _______________________________________________ Linux-il mailing list -- linux-il@cs.huji.ac.il To unsubscribe send an email to linux-il-leave@cs.huji.ac.il
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Orna Agmon Ben-Yehuda -
Shlomi Fish -
Shlomo Solomon -
Yaniv Haliwa