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6782663: Data produced by PrintGCApplicationConcurrentTime and PrintGCApplicationStoppedTime is not accurate

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Update and display the timers associated with these flags for all safepoints.

Reviewed-by: ysr, jcoomes
This commit is contained in:
John Cuthbertson 2010-02-09 13:56:09 -08:00
parent a88853347f
commit 0356567ed8
2 changed files with 18 additions and 13 deletions
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18
hotspot/src/share/vm/services/runtimeService.cpp
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@ -1,5 +1,5 @@
/*
* Copyright 2003-2006 Sun Microsystems, Inc. All Rights Reserved.
* Copyright 2003-2010 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -104,6 +104,13 @@ void RuntimeService::init() {
void RuntimeService::record_safepoint_begin() {
HS_DTRACE_PROBE(hs_private, safepoint__begin);
// Print the time interval in which the app was executing
if (PrintGCApplicationConcurrentTime) {
gclog_or_tty->print_cr("Application time: %3.7f seconds",
last_application_time_sec());
}
// update the time stamp to begin recording safepoint time
_safepoint_timer.update();
if (UsePerfData) {
@ -122,6 +129,15 @@ void RuntimeService::record_safepoint_synchronized() {
void RuntimeService::record_safepoint_end() {
HS_DTRACE_PROBE(hs_private, safepoint__end);
// Print the time interval for which the app was stopped
// during the current safepoint operation.
if (PrintGCApplicationStoppedTime) {
gclog_or_tty->print_cr("Total time for which application threads "
"were stopped: %3.7f seconds",
last_safepoint_time_sec());
}
// update the time stamp to begin recording app time
_app_timer.update();
if (UsePerfData) {