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8256425: Obsolete Biased Locking in JDK 18

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Reviewed-by: kvn, dholmes, dcubed, rrich
This commit is contained in:
Patricio Chilano Mateo 2021-06-24 18:54:41 +00:00
parent 595446bff4
commit 2fd7943ec1
165 changed files with 293 additions and 5261 deletions
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56
src/hotspot/share/runtime/flags/jvmFlagConstraintsRuntime.cpp
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@ -65,62 +65,6 @@ JVMFlag::Error ContendedPaddingWidthConstraintFunc(intx value, bool verbose) {
}
}
JVMFlag::Error BiasedLockingBulkRebiasThresholdFunc(intx value, bool verbose) {
if (value > BiasedLockingBulkRevokeThreshold) {
JVMFlag::printError(verbose,
"BiasedLockingBulkRebiasThreshold (" INTX_FORMAT ") must be "
"less than or equal to BiasedLockingBulkRevokeThreshold (" INTX_FORMAT ")\n",
value, BiasedLockingBulkRevokeThreshold);
return JVMFlag::VIOLATES_CONSTRAINT;
} else {
return JVMFlag::SUCCESS;
}
}
JVMFlag::Error BiasedLockingStartupDelayFunc(intx value, bool verbose) {
if ((value % PeriodicTask::interval_gran) != 0) {
JVMFlag::printError(verbose,
"BiasedLockingStartupDelay (" INTX_FORMAT ") must be "
"evenly divisible by PeriodicTask::interval_gran (%d)\n",
value, PeriodicTask::interval_gran);
return JVMFlag::VIOLATES_CONSTRAINT;
} else {
return JVMFlag::SUCCESS;
}
}
JVMFlag::Error BiasedLockingBulkRevokeThresholdFunc(intx value, bool verbose) {
if (value < BiasedLockingBulkRebiasThreshold) {
JVMFlag::printError(verbose,
"BiasedLockingBulkRevokeThreshold (" INTX_FORMAT ") must be "
"greater than or equal to BiasedLockingBulkRebiasThreshold (" INTX_FORMAT ")\n",
value, BiasedLockingBulkRebiasThreshold);
return JVMFlag::VIOLATES_CONSTRAINT;
} else if ((double)value/(double)BiasedLockingDecayTime > 0.1) {
JVMFlag::printError(verbose,
"The ratio of BiasedLockingBulkRevokeThreshold (" INTX_FORMAT ")"
" to BiasedLockingDecayTime (" INTX_FORMAT ") must be "
"less than or equal to 0.1\n",
value, BiasedLockingBulkRebiasThreshold);
return JVMFlag::VIOLATES_CONSTRAINT;
} else {
return JVMFlag::SUCCESS;
}
}
JVMFlag::Error BiasedLockingDecayTimeFunc(intx value, bool verbose) {
if (BiasedLockingBulkRebiasThreshold/(double)value > 0.1) {
JVMFlag::printError(verbose,
"The ratio of BiasedLockingBulkRebiasThreshold (" INTX_FORMAT ")"
" to BiasedLockingDecayTime (" INTX_FORMAT ") must be "
"less than or equal to 0.1\n",
BiasedLockingBulkRebiasThreshold, value);
return JVMFlag::VIOLATES_CONSTRAINT;
} else {
return JVMFlag::SUCCESS;
}
}
JVMFlag::Error PerfDataSamplingIntervalFunc(intx value, bool verbose) {
if ((value % PeriodicTask::interval_gran != 0)) {
JVMFlag::printError(verbose,