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8238832: Obsolete PrintVMQWaitTime

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Reviewed-by: ccheung, dcubed
This commit is contained in:
David Holmes 2020-06-17 21:07:08 -04:00
parent 9a26a01e2f
commit 2627f15348
5 changed files with 4 additions and 19 deletions
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8
src/hotspot/share/runtime/vmThread.cpp
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@ -447,13 +447,6 @@ void VMThread::loop() {
assert(_cur_vm_operation == NULL, "no current one should be executing");
_cur_vm_operation = _vm_queue->remove_next();
// Stall time tracking code
if (PrintVMQWaitTime && _cur_vm_operation != NULL) {
jlong stall = nanos_to_millis(os::javaTimeNanos() - _cur_vm_operation->timestamp());
if (stall > 0)
tty->print_cr("%s stall: " JLONG_FORMAT, _cur_vm_operation->name(), stall);
}
while (!should_terminate() && _cur_vm_operation == NULL) {
// wait with a timeout to guarantee safepoints at regular intervals
// (if there is cleanup work to do)
@ -643,7 +636,6 @@ void VMThread::execute(VM_Operation* op) {
MonitorLocker ml(VMOperationQueue_lock, Mutex::_no_safepoint_check_flag);
log_debug(vmthread)("Adding VM operation: %s", op->name());
_vm_queue->add(op);
op->set_timestamp(os::javaTimeNanos());
ml.notify();
}
{