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8059216: Make PrintGCApplicationStoppedTime print information about stopping threads

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Reviewed-by: dholmes, brutisso
This commit is contained in:
Vladimir Kempik 2014-10-28 18:41:34 +04:00
parent 4c036f5730
commit 24c29c4db4
2 changed files with 10 additions and 2 deletions
hotspot/src/share/vm/services
runtimeService.cppruntimeService.hpp

11
hotspot/src/share/vm/services/runtimeService.cpp

@ -38,6 +38,7 @@ PerfCounter* RuntimeService::_sync_time_ticks = NULL;
PerfCounter* RuntimeService::_total_safepoints = NULL;
PerfCounter* RuntimeService::_safepoint_time_ticks = NULL;
PerfCounter* RuntimeService::_application_time_ticks = NULL;
double RuntimeService::_last_safepoint_sync_time_sec = 0.0;
void RuntimeService::init() {
// Make sure the VM version is initialized
@ -96,6 +97,7 @@ void RuntimeService::record_safepoint_begin() {
// update the time stamp to begin recording safepoint time
_safepoint_timer.update();
_last_safepoint_sync_time_sec = 0.0;
if (UsePerfData) {
_total_safepoints->inc();
if (_app_timer.is_updated()) {
@ -108,6 +110,9 @@ void RuntimeService::record_safepoint_synchronized() {
if (UsePerfData) {
_sync_time_ticks->inc(_safepoint_timer.ticks_since_update());
}
if (PrintGCApplicationStoppedTime) {
_last_safepoint_sync_time_sec = last_safepoint_time_sec();
}
}
void RuntimeService::record_safepoint_end() {
@ -119,8 +124,10 @@ void RuntimeService::record_safepoint_end() {
gclog_or_tty->date_stamp(PrintGCDateStamps);
gclog_or_tty->stamp(PrintGCTimeStamps);
gclog_or_tty->print_cr("Total time for which application threads "
"were stopped: %3.7f seconds",
last_safepoint_time_sec());
"were stopped: %3.7f seconds, "
"Stopping threads took: %3.7f seconds",
last_safepoint_time_sec(),
_last_safepoint_sync_time_sec);
}
// update the time stamp to begin recording app time

1
hotspot/src/share/vm/services/runtimeService.hpp

@ -37,6 +37,7 @@ private:
static TimeStamp _safepoint_timer;
static TimeStamp _app_timer;
static double _last_safepoint_sync_time_sec;
public:
static void init();