** Changed in: gnome-system-monitor
Status: Unknown => Confirmed
** Changed in: gnome-system-monitor
Importance: Unknown => Medium
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https://bugs.launchpad.net/bugs/810498
Title:
CPU Resource Monitor ignores CPUs when 1 CPU is hotplugged
Status in The GNOME System Monitor:
Confirmed
Status in “gnome-system-monitor” package in Ubuntu:
Triaged
Bug description:
When Hotplugging a CPU Core (disableing it, see below), the CPU
Resource Monitor shows all CPUs with a ID equal or greater than the ID
of the hotplugged CPU with 0.0%, even though that is not the case.
In my case:
Im running a AMD X4 System with 4 Cores.
I disable core 2 via 'echo 0 > /sys/devices/system/cpu/cpu2/online'
(Hotplugging via the Method described here
http://www.cyberciti.biz/faq/debian-rhel-centos-redhat-suse-hotplug-cpu/)
At the same time Im running a Thread that puts core 3 at full load.
After disabling, the CPU Resource Monitor shows core 2 and core 3 at 0.0%
even though core 3 is still running at close to 100%.
After restarting the System Monitor it only shows cores 0 and 1. Core 3 is
not shown, even though it is still enabled and still shows up in /proc/cpuinfo
ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: gnome-system-monitor 2.28.1-1ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-30.54-generic 2.6.35.13
Uname: Linux 2.6.35-30-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Thu Jul 14 15:49:23 2011
ExecutablePath: /usr/bin/gnome-system-monitor
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
ProcEnviron:
LANG=en_US.utf8
SHELL=/bin/bash
SourcePackage: gnome-system-monitor
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