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8078556: Runtime: implement ranges (optionally constraints) for those flags that have them missing

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JEP 245: implement ranges and constraints for runtime flags.

Co-authored-by: Goetz Lindenmaier <goetz.lindenmaier@sap.com>
Reviewed-by: coleenp, ddmitriev, jiangli, goetz
This commit is contained in:
Gerard Ziemski 2015-10-15 13:34:21 -05:00
parent 7b389d3533
commit 22838597ea
17 changed files with 225 additions and 57 deletions
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10
hotspot/src/share/vm/runtime/safepoint.cpp
View file

@ -338,7 +338,7 @@ void SafepointSynchronize::begin() {
tty->print_cr("# SafepointSynchronize: Finished after "
INT64_FORMAT_W(6) " ms",
((current_time - safepoint_limit_time) / MICROUNITS +
SafepointTimeoutDelay));
(jlong)SafepointTimeoutDelay));
}
}
#endif
@ -1050,10 +1050,6 @@ static void print_header() {
void SafepointSynchronize::deferred_initialize_stat() {
if (init_done) return;
if (PrintSafepointStatisticsCount <= 0) {
fatal("Wrong PrintSafepointStatisticsCount");
}
// If PrintSafepointStatisticsTimeout is specified, the statistics data will
// be printed right away, in which case, _safepoint_stats will regress to
// a single element array. Otherwise, it is a circular ring buffer with default
@ -1164,7 +1160,7 @@ void SafepointSynchronize::end_statistics(jlong vmop_end_time) {
// PrintSafepointStatisticsTimeout will be printed out right away.
// By default, it is -1 meaning all samples will be put into the list.
if ( PrintSafepointStatisticsTimeout > 0) {
if (spstat->_time_to_sync > PrintSafepointStatisticsTimeout * MICROUNITS) {
if (spstat->_time_to_sync > (jlong)PrintSafepointStatisticsTimeout * MICROUNITS) {
print_statistics();
}
} else {
@ -1230,7 +1226,7 @@ void SafepointSynchronize::print_stat_on_exit() {
os::javaTimeNanos() - cleanup_end_time;
if ( PrintSafepointStatisticsTimeout < 0 ||
spstat->_time_to_sync > PrintSafepointStatisticsTimeout * MICROUNITS) {
spstat->_time_to_sync > (jlong)PrintSafepointStatisticsTimeout * MICROUNITS) {
print_statistics();
}
tty->cr();