| Posted | Nick | Remark | |
|---|---|---|---|
| #openstack-nova - 2022-07-08 | |||
| 08:19:46 | gibi | I also have perf issues with google meet (on T14, debian sid, xorg, i3, chrome). During our calls sometimes chrome starts to hogg the CPU and the audio and video starts lagging, and clipping. I haven't figured out yet what triggers the CPU hogging | |
| 08:20:28 | gibi | but as CPU get hot, thermal throttling kicks in and worsen the situation | |
| 08:21:10 | Uggla | gibi, welcome to the club :) | |
| 08:21:20 | gibi | then after 1 minute chrome stops hogging the CPU and after an additional minute google meet audio/video recovers | |
| 08:21:47 | gibi | I suspect that in my case it is chrome that does something crazy | |
| 08:23:40 | Uggla | bauzas, maybe we should have a look to firmware as well. | |
| 08:24:22 | Uggla | *has | |
| 08:25:13 | Uggla | gibi, have you a moment to look at my issue ? | |
| 08:25:20 | gibi | yes, I'm ready now | |
| 08:25:47 | gibi | lets test some google meet ;) | |
| 08:25:53 | Uggla | yep | |
| 08:25:54 | Uggla | :) | |
| 08:34:22 | bauzas | ok, I tuned sar to report my CPU clock freq | |
| 08:34:43 | bauzas | we'll see, I have to join auniyal_'s meeting now :) | |
| 08:39:19 | bauzas | hah ! | |
| 08:39:44 | bauzas | my clock freq turns down to 800MHz while the temperature on the devices is only about 50°C | |
| 08:39:44 | bauzas | my clock freq turns down to 800MHz while the temperature on the devices is only about 50°C | |
| 08:40:05 | gibi | that sounds bad | |
| 08:40:19 | bauzas | when I playing gmeet I mean | |
| 08:40:21 | gibi | mine can sustain 1.8GHz while hot | |
| 08:41:12 | bauzas | sar reports the frequency constantly flipping between 866MHz and 1.5GHz | |
| 08:41:19 | bauzas | every second | |
| 08:42:48 | bauzas | yeah, found a direct correlation | |
| 08:42:50 | bauzas | huzzah | |
| 08:43:05 | bauzas | between the CPU clock freq and the CPU usage | |
| 08:47:29 | bauzas | https://paste.opendev.org/show/bHWo1z8ElaEDqW2b95fZ/ | |
| 08:51:35 | bauzas | [sbauza@sbauza ~]$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor | |
| 08:51:35 | bauzas | powersave | |
| 08:51:38 | bauzas | hmmmpfff | |
| 08:56:45 | kashyap | bauzas: What laptop is yours? | |
| 09:04:29 | bauzas | 11:02:30 CPU MHz | |
| 09:04:29 | bauzas | 11:02:31 all 410,34 | |
| 09:04:33 | bauzas | t14s | |
| 09:05:21 | kashyap | I see | |
| 09:30:47 | Uggla | bauzas, maybe you can run sudo fwupdmgr get-devices it will give you fw revision on your laptop. So we could compare with mine and gibi's. | |
| 09:31:18 | bauzas | on a meeting with auniyal_ | |
| 09:31:23 | bauzas | will reply later | |
| 09:31:43 | bauzas | but I think this is a the CPU governor's fault | |
| 09:33:12 | gibi | I have a ThinkPad T14s Gen 1 | |
| 09:33:48 | gibi | hm, the powersave governor could be a problem | |
| 09:34:01 | Uggla | bauzas from release note latest system relase note: • Updated includes thermal optimization. | |
| 09:35:55 | Uggla | clearly mine is not at the latest version 0.1.15 vs 0.1.21 | |
| 09:38:52 | Uggla | so bauzas has you have received this laptop first maybe maybe your fws are really "old". | |
| 09:39:55 | Uggla | My current version: https://paste.openstack.org/show/b9cnjsnSNOqzjw52AA8L/ | |
| 09:47:45 | gibi | this is mine https://paste.opendev.org/show/b48RVDFNHGRaeHUq2qMg/ | |
| 10:10:11 | sean-k-mooney1 | bauzas: powersave keep the cpu at the minium frequency | |
| 10:10:42 | sean-k-mooney | you should set it to the hardware pstate dirver or use ondemand | |
| 10:10:56 | sean-k-mooney | also i recommend not using tuned | |
| 10:11:14 | sean-k-mooney | i have had severl issue with it in the past so i dont trust it anymore | |
| 10:12:11 | sean-k-mooney | by issue i mean putting one or both ports in a bond to sleep or disabling my mouse/keyboard randomly | |
| 10:14:55 | bauzas | sean-k-mooney1: yup, was considering to use ondemand | |
| 10:15:14 | bauzas | sean-k-mooney1: but I'd like a governor different between being plugged or not | |
| 10:15:24 | bauzas | I thought Fedora was managing it but apparently not | |
| 10:15:46 | sean-k-mooney | bauzas: i used to use udev rules to do that | |
| 10:15:57 | bauzas | yup, that's what I thought I need to do | |
| 10:16:02 | sean-k-mooney | ill see if i have them but i dont know if i have it on this laptop since i reinstalled | |
| 10:16:04 | bauzas | but this sucks for users | |
| 10:16:19 | bauzas | how many people know about udev rules ? | |
| 10:16:24 | bauzas | and systemctl ? | |
| 10:16:34 | sean-k-mooney | well gnome/cinanamon/kde often can | |
| 10:16:55 | sean-k-mooney | its normally built into the destop envionment | |
| 10:16:56 | bauzas | why can't we have a standard behaviour to be ondemand when plugged and powersave when unplugged ? | |
| 10:16:58 | sean-k-mooney | with a nice gui | |
| 10:17:07 | bauzas | sean-k-mooney: yup, and I saw it | |
| 10:17:23 | bauzas | sean-k-mooney1: but now with F35 and F36, this is stuck to powersave apparently | |
| 10:17:38 | bauzas | I still have the GUI but clicking makes no result | |
| 10:17:39 | sean-k-mooney | have you tried removing tuned | |
| 10:17:53 | sean-k-mooney | its not using tuned to implement this | |
| 10:17:56 | bauzas | and I can't define a plugged/unplugged strategy like before | |
| 10:17:58 | sean-k-mooney | so it could be fighting with it | |
| 10:18:19 | bauzas | I haven't investigated it | |
| 10:18:34 | sean-k-mooney | https://linux.die.net/man/1/gnome-power-manager | |
| 10:18:37 | bauzas | I'm already glad I found the root cause... | |
| 10:18:45 | sean-k-mooney | that is what shoudl be doing it on the gnome side | |
| 10:19:11 | bauzas | but again, how many users are knowing how to collect power metrics with sar ? | |
| 10:19:20 | bauzas | and even knowing what sar is ? | |
| 10:19:44 | sean-k-mooney | well your not going to find me defending fedroa | |
| 10:19:51 | sean-k-mooney | you know i stongly dislike it | |
| 10:19:55 | bauzas | if you want MHO, Fedora is too much opiniated about what people should do | |
| 10:20:02 | sean-k-mooney | just pointing out its probaly tuned that is the issue | |
| 10:20:11 | bauzas | I'll look into it | |
| 10:20:17 | bauzas | thanks | |
| 10:21:08 | sean-k-mooney | i havenet used fedora since f33 or f32 but it did not used to have tuned installed so i wonder whne that got added | |
| 10:22:58 | kashyap | sean-k-mooney: I'm on F36, and I don't have 'tuned' installed by default (mine is a 'Workstation' install) | |
| 10:23:34 | sean-k-mooney | ack | |
| 10:23:40 | sean-k-mooney | i wonder why bauzas has it then | |
| 10:23:52 | bauzas | I haven't said I have tuned | |
| 10:24:01 | sean-k-mooney | oh i tought you did | |
| 10:24:19 | sean-k-mooney | ignore the noise then | |
| 10:24:35 | bauzas | [sbauza@sbauza ~]$ rpm -qa | grep tuned | |
| 10:24:35 | bauzas | [sbauza@sbauza ~]$ | |
| 10:24:57 | bauzas | I'll continue on it this afternoon | |
| 10:25:06 | bauzas | looks like an Hack&Hustle session | |
| 10:26:31 | sean-k-mooney | ya maybe | |
| 10:26:46 | sean-k-mooney | let us know if you figure it out either way | |
| 10:27:06 | bauzas | my sar figures are explicit | |
| 10:27:13 | bauzas | my temperature was still fine | |
| 10:27:31 | bauzas | but I was struggling with CPU clock freq at 400Mhz | |
| 10:27:44 | bauzas | and my audio was then choppy as the load was spiking up to 8.0 | |
| 10:27:54 | bauzas | (8 CPUs, which is normal) | |