kded eats CPU continuously due to KNemo
Bug #32981 reported by
Benjamin Herrenschmidt
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| knemo (Ubuntu) |
Fix Released
|
Wishlist
|
Kubuntu Bugs | ||
Bug Description
I noticed since I switched to Kubuntu that kded eats about 4% of CPU continuously on an idle machine. This is very annoying as it significantly reduces the idle power saving on the laptop (and will be even worse once things like no-idle-tick patches get in the kernel).
I played with enabling/disabling various KDE services and it appears that the culprit is KNemo (KNetworkMonitor). Disabling it brings kded back to some 0.3% or so, or even less.
Revision history for this message
| Achim Bohnet (allee) wrote | #1 |
| Changed in knemo: | |
| status: | Unconfirmed → Confirmed |
Revision history for this message
| Achim Bohnet (allee) wrote | #2 |
| Changed in knemo: | |
| assignee: | nobody → kubuntu-team |
Revision history for this message
| Luka Renko (lure) wrote | #3 |
| Changed in knemo: | |
| status: | Confirmed → Fix Released |
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This is a known problem. From knemo long description:
...
knemo polls the network interface status every second using the
ifconfig, route and iwconfig tools.
...
Knemo's load on my Desktop here is hardly noticeable. But when
my laptop CPU is scaled down to 600 MHz I also see a load of
2-3 %.
Achim