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8140257: Add support for "gc service threads" to ConcurrentGCThread

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Push up the common run() and stop() methods from subclasses to ConcurrentGCThread, as well as declaration iof run_service() stop_service().

Reviewed-by: kbarrett, pliden
This commit is contained in:
Derek White 2016-03-11 16:59:58 -05:00
parent 8c894a92ef
commit f6810526ab
15 changed files with 111 additions and 223 deletions
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30
hotspot/src/share/vm/gc/g1/g1YoungRemSetSamplingThread.cpp
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@ -32,32 +32,6 @@
#include "gc/g1/suspendibleThreadSet.hpp"
#include "runtime/mutexLocker.hpp"
void G1YoungRemSetSamplingThread::run() {
initialize_in_thread();
wait_for_universe_init();
run_service();
terminate();
}
void G1YoungRemSetSamplingThread::stop() {
// it is ok to take late safepoints here, if needed
{
MutexLockerEx mu(Terminator_lock);
_should_terminate = true;
}
stop_service();
{
MutexLockerEx mu(Terminator_lock);
while (!_has_terminated) {
Terminator_lock->wait();
}
}
}
G1YoungRemSetSamplingThread::G1YoungRemSetSamplingThread() :
ConcurrentGCThread(),
_monitor(Mutex::nonleaf,
@ -70,7 +44,7 @@ G1YoungRemSetSamplingThread::G1YoungRemSetSamplingThread() :
void G1YoungRemSetSamplingThread::sleep_before_next_cycle() {
MutexLockerEx x(&_monitor, Mutex::_no_safepoint_check_flag);
if (!_should_terminate) {
if (!should_terminate()) {
uintx waitms = G1ConcRefinementServiceIntervalMillis; // 300, really should be?
_monitor.wait(Mutex::_no_safepoint_check_flag, waitms);
}
@ -79,7 +53,7 @@ void G1YoungRemSetSamplingThread::sleep_before_next_cycle() {
void G1YoungRemSetSamplingThread::run_service() {
double vtime_start = os::elapsedVTime();
while (!_should_terminate) {
while (!should_terminate()) {
sample_young_list_rs_lengths();
if (os::supports_vtime()) {