diff options
Diffstat (limited to 'tools/power/x86/turbostat/turbostat.c')
| -rw-r--r-- | tools/power/x86/turbostat/turbostat.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index c600340dfc4e..e411cc435137 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -38,12 +38,13 @@ #include <string.h> #include <ctype.h> #include <sched.h> +#include <time.h> #include <cpuid.h> #include <linux/capability.h> #include <errno.h> char *proc_stat = "/proc/stat"; -unsigned int interval_sec = 5; +struct timespec interval_ts = {5, 0}; unsigned int debug; unsigned int rapl_joules; unsigned int summary_only; @@ -1728,7 +1729,7 @@ restart: re_initialize(); goto restart; } - sleep(interval_sec); + nanosleep(&interval_ts, NULL); retval = for_all_cpus(get_counters, ODD_COUNTERS); if (retval < -1) { exit(retval); @@ -1742,7 +1743,7 @@ restart: compute_average(EVEN_COUNTERS); format_all_counters(EVEN_COUNTERS); flush_stdout(); - sleep(interval_sec); + nanosleep(&interval_ts, NULL); retval = for_all_cpus(get_counters, EVEN_COUNTERS); if (retval < -1) { exit(retval); @@ -3347,7 +3348,18 @@ void cmdline(int argc, char **argv) help(); exit(1); case 'i': - interval_sec = atoi(optarg); + { + double interval = strtod(optarg, NULL); + + if (interval < 0.001) { + fprintf(stderr, "interval %f seconds is too small\n", + interval); + exit(2); + } + + interval_ts.tv_sec = interval; + interval_ts.tv_nsec = (interval - interval_ts.tv_sec) * 1000000000; + } break; case 'J': rapl_joules++; |