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8185005: Improve performance of ThreadMXBean.getThreadInfo(long ids[], int maxDepth)

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Reviewed-by: sspitsyn, dholmes, dcubed, rehn
This commit is contained in:
Daniil Titov 2019-09-25 11:10:05 -07:00
parent c49aa4ffa5
commit 6ccf3351d7
5 changed files with 334 additions and 10 deletions
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2
src/hotspot/share/runtime/mutexLocker.cpp
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@ -135,6 +135,7 @@ Mutex* CodeHeapStateAnalytics_lock = NULL;
Mutex* MetaspaceExpand_lock = NULL;
Mutex* ClassLoaderDataGraph_lock = NULL;
Monitor* ThreadsSMRDelete_lock = NULL;
Mutex* ThreadIdTableCreate_lock = NULL;
Mutex* SharedDecoder_lock = NULL;
Mutex* DCmdFactory_lock = NULL;
#if INCLUDE_NMT
@ -317,6 +318,7 @@ void mutex_init() {
def(CodeHeapStateAnalytics_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
def(NMethodSweeperStats_lock , PaddedMutex , special, true, Monitor::_safepoint_check_never);
def(ThreadsSMRDelete_lock , PaddedMonitor, special, true, Monitor::_safepoint_check_never);
def(ThreadIdTableCreate_lock , PaddedMutex , leaf, false, Monitor::_safepoint_check_always);
def(SharedDecoder_lock , PaddedMutex , native, false, Monitor::_safepoint_check_never);
def(DCmdFactory_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
#if INCLUDE_NMT