[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 Nate Graham changed: What|Removed |Added CC||n...@kde.org Resolution|--- |UPSTREAM Status|CONFIRMED |RESOLVED --- Comment #12 from Nate Graham --- Yay, thanks! -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 --- Comment #11 from Jesus --- Confirmed too, it's fixed in kernel 6.4.8 -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 --- Comment #10 from Martin van Es --- I can confirm it's fixed in (kernel) 6.4.8. -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 --- Comment #9 from sa666...@gmail.com --- Issue seems to be fixed in kernel 6.4.8. It was still there in 6.4.7 -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 m...@vchrist.at changed: What|Removed |Added CC||m...@vchrist.at -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 Martin van Es changed: What|Removed |Added CC||b...@mrvanes.com -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 sa666...@gmail.com changed: What|Removed |Added CC||sa666...@gmail.com -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 Michele Corazza changed: What|Removed |Added CC||ashmi...@gmail.com -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 Joshua Glass changed: What|Removed |Added CC||joshuag1...@outlook.com -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 --- Comment #8 from Jesus --- (In reply to Martin Schnitkemper from comment #7) > (In reply to Jesus from comment #6) > > The same on arch linux, one core at 100% but htop shows all cores at 0% > In 'htop' press 'F2', then check in the "Display Options" the option > "Detailed CPU time", and after that you see the IO-Wait for the core in the > meters panel. > The problem is, that in opposite to other tools like 'htop' the KDE system > monitor reports IO-Waits as CPU usage; and that should be fixed. Ok, that shows one core at 100% but in gray color like disabled. Well it's not a critical bug, it will be fixed when someone who knows how to fix it has time to do it. Thank you -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 --- Comment #7 from Martin Schnitkemper --- (In reply to Jesus from comment #6) > The same on arch linux, one core at 100% but htop shows all cores at 0% In 'htop' press 'F2', then check in the "Display Options" the option "Detailed CPU time", and after that you see the IO-Wait for the core in the meters panel. The problem is, that in opposite to other tools like 'htop' the KDE system monitor reports IO-Waits as CPU usage; and that should be fixed. -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 Jesus changed: What|Removed |Added CC||mapatr...@gmail.com --- Comment #6 from Jesus --- The same on arch linux, one core at 100% but htop shows all cores at 0% -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 eqkes...@gmail.com changed: What|Removed |Added CC||eqkes...@gmail.com -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 --- Comment #5 from Martin Schnitkemper --- (In reply to Matej Mrenica from comment #4) > Yes, mariadb is indeed the cause of this, so this might not be a kde issue > afterall? How can we determine what uses mariadb? It looks like a kernel regression. I just downgraded to version 6.1.38-1-lts and the problem is gone. Since I am afraid of any negative site effects of downgraded components, I prefer to stay at the current kernel and decided to live with the problem. It seems that it is more a kind of cosmetic problem, because the system is not rather slow or does heat up. And it's also not shown in other applications like "top", or at the process table. -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 --- Comment #4 from Matej Mrenica --- (In reply to Martin Schnitkemper from comment #3) > It seems that it belongs to MariaDB: if I stop also the mariadb.service, CPU > load for all cores are gone. That explains why after stopping the akonadi > server, only one core has the 100% load, since akonadi also uses MariaDB; if > I run mariadb and akonadi, I get the load on two cores, if I stop both, the > CPU usage is back to normal. > That happens with kernel v6.4.4 as well as with LTS v6.1.39. Yes, mariadb is indeed the cause of this, so this might not be a kde issue afterall? How can we determine what uses mariadb? -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 --- Comment #3 from Martin Schnitkemper --- It seems that it belongs to MariaDB: if I stop also the mariadb.service, CPU load for all cores are gone. That explains why after stopping the akonadi server, only one core has the 100% load, since akonadi also uses MariaDB; if I run mariadb and akonadi, I get the load on two cores, if I stop both, the CPU usage is back to normal. That happens with kernel v6.4.4 as well as with LTS v6.1.39. -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 Martin Schnitkemper changed: What|Removed |Added CC||martin.schnitkemper@nexgo.d ||e --- Comment #2 from Martin Schnitkemper --- Same here after latest update. Got 100% CPU usage on two cores after sign in as user, but can't find neither in the processtable nor top (or htop) such the process that triggers the load. Interesting observation: If I stop akonadi it goes down to one CPU, if I start the akonadi server again, it raises again up to two CPUs. System Information: | Operating System: Arch Linux | KDE Plasma Version: 5.27.6 | KDE Frameworks Version: 5.108.0 | Qt Version: 5.15.10 | Kernel Version: 6.4.4-arch1-1 (64-bit) -- You are receiving this mail because: You are watching all bug changes.
[plasma-systemmonitor] [Bug 472522] Plasma System monitor falsely shows 100% CPU usage on one core
https://bugs.kde.org/show_bug.cgi?id=472522 Matej Mrenica changed: What|Removed |Added Status|REPORTED|CONFIRMED CC||matejm98m...@gmail.com Platform|Other |unspecified Ever confirmed|0 |1 Version|unspecified |5.27.6 --- Comment #1 from Matej Mrenica --- Same issue here, one of the cores incorrectly shows 100% usage. This is common for all kde apps and widgets but not btop, glances or any other 3rd party apps. I am also on Arch Linux, I tried both LTS and stable kernels just in case. I suspect this is not a System monitor issue but rather it's source. -- You are receiving this mail because: You are watching all bug changes.
