kernel: Update CPU runtime stats of non-idle time
Updates sched_cpu_update_usage() such that the CPU runtime stats
only update the its non-idle time when the current thread is not the
idle thread. This is necessary as otherwise the CPUs idle-time will
be double counted in k_thread_runtime_stats.execution_cycles.
Signed-off-by: Peter Mitsis <peter.mitsis@intel.com>
diff --git a/kernel/usage.c b/kernel/usage.c
index c5da1de..2d8be20 100644
--- a/kernel/usage.c
+++ b/kernel/usage.c
@@ -47,7 +47,9 @@
}
#endif
- cpu->usage.total += cycles;
+ if (cpu->current != cpu->idle_thread) {
+ cpu->usage.total += cycles;
+ }
}
#else
#define sched_cpu_update_usage(cpu, cycles) do { } while (0)
