[Pkg-xfce-devel] Bug#664208: cpugraph plugin shows 100% system load on multicore CPU

SZABO Zsolt szazs89 at yahoo.com
Mon Aug 13 17:17:45 UTC 2012

Package: xfce4-cpugraph-plugin
Version: 0.4.0-2+b1
Severity: normal

I had the same problem on an 8-core Intel CPU. The patch that seems to solve
this issue is  slightly different (for i386 (686) arch.):

--- xfce4-cpugraph-plugin-0.4.0/panel-plugin/cpu_os.c.orig      2007-11-22 06:18:52.000000000 +0100
+++ xfce4-cpugraph-plugin-0.4.0/panel-plugin/cpu_os.c   2012-08-13 18:39:41.000000000 +0200
@@ -84,8 +84,8 @@
 cpuLoadData *cpuLoadMon_read(){
        FILE *fStat = NULL;
        char cpuStr[PROCMAXLNLEN];
-       unsigned long user, nice, system, idle;
-       unsigned long used, total;
+       unsigned long long int user, nice, system, idle;
+       unsigned long long int used, total;
        int cpuNr = 0;
@@ -99,7 +99,7 @@
                if(!fgets(cpuStr, PROCMAXLNLEN, fStat)) return(data);
-               sscanf(cpuStr, "%*s %ld %ld %ld %ld", &user, &nice, &system, &idle);
+               sscanf(cpuStr, "%*s %lld %lld %lld %lld", &user, &nice, &system, &idle);
                used = user + nice + system;
                total = used + idle;

PS: "multicore" means larger than 2 (or even greater)...
since the plugin works fine on a dual core E2180 Intel CPU @home

-- System Information:
Debian Release: 6.0.5
  APT prefers proposed-updates
  APT policy: (500, 'proposed-updates'), (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-bpo.5-vserver-686-bigmem (SMP w/8 CPU cores)
Locale: LANG=hu_HU, LC_CTYPE=hu_HU (charmap=ISO-8859-2)
Shell: /bin/sh linked to /bin/bash

Versions of packages xfce4-cpugraph-plugin depends on:
ii  libatk1.0-0           1.30.0-1           The ATK accessibility toolkit
ii  libc6                 2.11.3-4           Embedded GNU C Library: Shared lib
ii  libcairo2             1.8.10-6           The Cairo 2D vector graphics libra
ii  libfontconfig1        2.8.0-2.1          generic font configuration library
ii  libfreetype6          2.4.2-2.1+squeeze4 FreeType 2 font engine, shared lib
ii  libglib2.0-0          2.24.2-1           The GLib library of C routines
ii  libgtk2.0-0           2.20.1-2           The GTK+ graphical user interface 
ii  libpango1.0-0         1.28.3-1+squeeze2  Layout and rendering of internatio
ii  libxfce4util4         4.6.2-1            Utility functions library for Xfce
ii  libxfcegui4-4         4.6.4-1            Basic GUI C functions for Xfce4
ii  xfce4-panel           4.6.4-1            The Xfce4 desktop environment pane

xfce4-cpugraph-plugin recommends no packages.

xfce4-cpugraph-plugin suggests no packages.

-- no debconf information

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