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8025692: Log what methods are touched at run-time

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Added two diagnostic flags, LogTouchedMethods and PrintTouchedMethodsAtExit to list all methods that have been touched at run time. Added new jcmd, VM.print_touched_methods.

Reviewed-by: acorn, iklam
This commit is contained in:
Yumin Qi 2015-07-15 12:24:41 -07:00
parent 99e5ddaa45
commit 6384ca7b1f
19 changed files with 319 additions and 18 deletions
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2
hotspot/src/share/vm/runtime/mutexLocker.cpp
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@ -63,6 +63,7 @@ Monitor* StringDedupQueue_lock = NULL;
Mutex* StringDedupTable_lock = NULL;
Monitor* CodeCache_lock = NULL;
Mutex* MethodData_lock = NULL;
Mutex* TouchedMethodLog_lock = NULL;
Mutex* RetData_lock = NULL;
Monitor* VMOperationQueue_lock = NULL;
Monitor* VMOperationRequest_lock = NULL;
@ -274,6 +275,7 @@ void mutex_init() {
def(Compile_lock , Mutex , nonleaf+3, true, Monitor::_safepoint_check_sometimes);
def(MethodData_lock , Mutex , nonleaf+3, false, Monitor::_safepoint_check_always);
def(TouchedMethodLog_lock , Mutex , nonleaf+3, false, Monitor::_safepoint_check_always);
def(MethodCompileQueue_lock , Monitor, nonleaf+4, true, Monitor::_safepoint_check_always);
def(Debug2_lock , Mutex , nonleaf+4, true, Monitor::_safepoint_check_never);