OpenJDK / bsd-port / jdk9 / hotspot
changeset 7322:200f943f2264
8059216: Make PrintGCApplicationStoppedTime print information about stopping threads
Reviewed-by: dholmes, brutisso
| author | vkempik |
|---|---|
| date | Tue, 28 Oct 2014 18:41:34 +0400 |
| parents | f87b2b4a1bb1 |
| children | 4b95a66aa564 6bb834d621bb |
| files | src/share/vm/services/runtimeService.cpp src/share/vm/services/runtimeService.hpp |
| diffstat | 2 files changed, 10 insertions(+), 2 deletions(-) [+] |
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--- a/src/share/vm/services/runtimeService.cpp Thu Oct 30 18:38:42 2014 -0400 +++ b/src/share/vm/services/runtimeService.cpp Tue Oct 28 18:41:34 2014 +0400 @@ -38,6 +38,7 @@ 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 @@ // 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 @@ 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 @@ 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
--- a/src/share/vm/services/runtimeService.hpp Thu Oct 30 18:38:42 2014 -0400 +++ b/src/share/vm/services/runtimeService.hpp Tue Oct 28 18:41:34 2014 +0400 @@ -37,6 +37,7 @@ static TimeStamp _safepoint_timer; static TimeStamp _app_timer; + static double _last_safepoint_sync_time_sec; public: static void init();