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-rw-r--r--tools/power/x86/turbostat/turbostat.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 3c063a00f3b..77e76b11382 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -656,8 +656,10 @@ int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
{
int cpu = t->cpu_id;
- if (cpu_migrate(cpu))
+ if (cpu_migrate(cpu)) {
+ fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
return -1;
+ }
t->tsc = rdtsc(); /* we are running on local CPU of interest */
@@ -1088,15 +1090,22 @@ int mark_cpu_present(int cpu)
void turbostat_loop()
{
int retval;
+ int restarted = 0;
restart:
+ restarted++;
+
retval = for_all_cpus(get_counters, EVEN_COUNTERS);
if (retval < -1) {
exit(retval);
} else if (retval == -1) {
+ if (restarted > 1) {
+ exit(retval);
+ }
re_initialize();
goto restart;
}
+ restarted = 0;
gettimeofday(&tv_even, (struct timezone *)NULL);
while (1) {