Version: (using KDE 4.4.0) OS: Linux Installed from: Archlinux Packages The system load viewer plasmoid constantly displays CPU usage that has little relevance to usage reported by ksysguard, top, and other cpu usage tools. It stays around 30-50%, whether the system is idle or working hard. This is a regression since KDE SC 4.3.5. Tested with Arch and Gentoo packages, single- and dual-core CPUs.
I'm getting the same thing: it shows 80%, while it's actually 1%.
Seconded. Mine is constantly at about 50%. This worked fine in 4.3.5.
When you are using this applet: - Do you have composting enabled? And if so, what graphics driver? - Do you have the option "Show usage of all processors" checked? If not, does the applet properly display the status when you do check it (either on single or dual cores?)
I have compositing enabled, using the NVIDIA proprietary driver. It displays correct values when I enable "Show usage of all processors". When I disable it, it seems to keep the value from the first CPU, and doesn't update it anymore. I'm using a quad-core CPU.
- Compositing doesn't seem to affect this bug. - Switching "show usage of all processors" on and off does seem to have an effect. "On" seems better on my single-core, but it also randomly triggers bug #227144. - On another note, displaying the popup by mousing over the applet is pretty CPU-intensive : at least 20% on this 1.6Ghz Atom, 1000ms updates. This can skew readings further when you use the applet to read CPU usage.
- No compositing enabled. Computer 1 (dual core): radeonhd 1.3.0. Computer 2 (quad core): intel 2.9.1. This bug triggers on both systems and seems independent on compositing. - "Show usage of all processors" matters. The bug only triggers when unchecked. When checked it works as expected, but bug #227144 triggers frequently. Also, on my quad core with a wide vertical panel and a horizontal system load viewer, this makes the system load viewer annoyingly large. Still, checking "Show usage of all..." works as a workaround for me. It is not annoying on my dual core.
Bug 221375 seems related to this.
*** Bug 227182 has been marked as a duplicate of this bug. ***
*** Bug 221375 has been marked as a duplicate of this bug. ***
*** Bug 227144 has been marked as a duplicate of this bug. ***
This bug (and its related duplicates) should now be resolved in trunk as of revision 1098929 and in 4.4 branch as of 1098934. The fix should be in 4.4.2. There was some weird behaviour happening in the applet related connecting to data engine. This caused the weird floating bars as well as the "frozen" bars for cpu.
The "floating bar" problem described in bugs marked as duplicate ( Bug 221375 and Bug 227144 ) still occurs for me under kde 4.4.5