2010-12-16 Sebastian Huber <sebastian.huber@embedded-brains.de>

	* libmisc/cpuuse/cpuusagereport.c: We have to take the time since the
	last context switch before the uptime.

1 files changed, 3 insertions, 4 deletions

diff --git a/cpukit/libmisc/cpuuse/cpuusagereport.c b/cpukit/libmisc/cpuuse/cpuusagereport.c
index 8b7eb00300..5f4f51bd1f 100644
--- a/cpukit/libmisc/cpuuse/cpuusagereport.c
+++ b/cpukit/libmisc/cpuuse/cpuusagereport.c
@@ -53,7 +53,7 @@ void rtems_cpu_usage_report_with_plugin(
   char                 name[13];
   uint32_t             ival, fval;
   #ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
-    Timestamp_Control  uptime, total, ran;
+    Timestamp_Control  uptime, total, ran, last_context_switch;
   #else
     uint32_t           total_units = 0;
   #endif
@@ -67,6 +67,7 @@ void rtems_cpu_usage_report_with_plugin(
    *  guideline as to what each number means proportionally.
    */
   #ifndef __RTEMS_USE_TICKS_FOR_STATISTICS__
+    last_context_switch = _Thread_Time_of_last_context_switch;
     _TOD_Get_uptime( &uptime );
     _Timestamp_Subtract( &CPU_usage_Uptime_at_last_reset, &uptime, &total );
   #else
@@ -132,9 +133,7 @@ void rtems_cpu_usage_report_with_plugin(
           ran = the_thread->cpu_time_used;
           if ( _Thread_Executing->Object.id == the_thread->Object.id ) {
             Timestamp_Control used;
-            _Timestamp_Subtract(
-              &_Thread_Time_of_last_context_switch, &uptime, &used
-            );
+            _Timestamp_Subtract( &last_context_switch, &uptime, &used );
             _Timestamp_Add_to( &ran, &used );
           };
           _Timestamp_Divide( &ran, &total, &ival, &fval );