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8026334: hs_err improvement: Print elapsed time in a humanly readable format

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Reviewed-by: coleenp, dsamersoff
This commit is contained in:
Masato Yoshida 2014-04-02 16:08:59 +01:00 • committed by Kevin Walls
parent 3c7ebc1745
commit cf2bf09668
1 changed files with 15 additions and 1 deletions
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16
hotspot/src/share/vm/runtime/os.cpp
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@ -929,6 +929,10 @@ void os::print_cpu_info(outputStream* st) {
} }
void os::print_date_and_time(outputStream *st) { void os::print_date_and_time(outputStream *st) {
const int secs_per_day = 86400;
const int secs_per_hour = 3600;
const int secs_per_min = 60;
time_t tloc; time_t tloc;
(void)time(&tloc); (void)time(&tloc);
st->print("time: %s", ctime(&tloc)); // ctime adds newline. st->print("time: %s", ctime(&tloc)); // ctime adds newline.
@ -937,7 +941,17 @@ void os::print_date_and_time(outputStream *st) {
// NOTE: It tends to crash after a SEGV if we want to printf("%f",...) in // NOTE: It tends to crash after a SEGV if we want to printf("%f",...) in
// Linux. Must be a bug in glibc ? Workaround is to round "t" to int // Linux. Must be a bug in glibc ? Workaround is to round "t" to int
// before printf. We lost some precision, but who cares? // before printf. We lost some precision, but who cares?
st->print_cr("elapsed time: %d seconds", (int)t); int eltime = (int)t; // elapsed time in seconds
// print elapsed time in a human-readable format:
int eldays = eltime / secs_per_day;
int day_secs = eldays * secs_per_day;
int elhours = (eltime - day_secs) / secs_per_hour;
int hour_secs = elhours * secs_per_hour;
int elmins = (eltime - day_secs - hour_secs) / secs_per_min;
int minute_secs = elmins * secs_per_min;
int elsecs = (eltime - day_secs - hour_secs - minute_secs);
st->print_cr("elapsed time: %d seconds (%dd %dh %dm %ds)", eltime, eldays, elhours, elmins, elsecs);
} }
// moved from debug.cpp (used to be find()) but still called from there // moved from debug.cpp (used to be find()) but still called from there