diff options
Diffstat (limited to 'src/bootchart/store.c')
| -rw-r--r-- | src/bootchart/store.c | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/src/bootchart/store.c b/src/bootchart/store.c index e0719838d5..cedcba88ed 100644 --- a/src/bootchart/store.c +++ b/src/bootchart/store.c @@ -57,27 +57,22 @@ double gettime_ns(void) { return (n.tv_sec + (n.tv_nsec / 1000000000.0)); } -void log_uptime(void) { - _cleanup_fclose_ FILE *f = NULL; - char str[32]; - double uptime; - - f = fopen("/proc/uptime", "re"); - - if (!f) - return; - if (!fscanf(f, "%s %*s", str)) - return; - - uptime = strtod(str, NULL); +static double gettime_up(void) { + struct timespec n; - log_start = gettime_ns(); + clock_gettime(CLOCK_BOOTTIME, &n); + return (n.tv_sec + (n.tv_nsec / 1000000000.0)); +} - /* start graph at kernel boot time */ +void log_uptime(void) { if (arg_relative) - graph_start = log_start; - else + graph_start = log_start = gettime_ns(); + else { + double uptime = gettime_up(); + + log_start = gettime_ns(); graph_start = log_start - uptime; + } } static char *bufgetline(char *buf) { |