Mercurial > jdk8-mips64-public > hotspot / changeset

     1.1 --- a/src/share/vm/runtime/interfaceSupport.cpp	Tue Mar 10 21:20:10 2015 -0400
     1.2 +++ b/src/share/vm/runtime/interfaceSupport.cpp	Sun Nov 02 18:42:30 2014 +0300
     1.3 @@ -185,19 +185,22 @@
     1.4  
     1.5  # endif
     1.6  
     1.7 -
     1.8 +// invocation counter for InterfaceSupport::deoptimizeAll/zombieAll functions
     1.9  int deoptimizeAllCounter = 0;
    1.10  int zombieAllCounter = 0;
    1.11  
    1.12 -
    1.13  void InterfaceSupport::zombieAll() {
    1.14 -  if (is_init_completed() && zombieAllCounter > ZombieALotInterval) {
    1.15 +  // This method is called by all threads when a thread make
    1.16 +  // transition to VM state (for example, runtime calls).
    1.17 +  // Divide number of calls by number of threads to avoid
    1.18 +  // dependence of ZombieAll events frequency on number of threads.
    1.19 +  int value = zombieAllCounter / Threads::number_of_threads();
    1.20 +  if (is_init_completed() && value > ZombieALotInterval) {
    1.21      zombieAllCounter = 0;
    1.22      VM_ZombieAll op;
    1.23      VMThread::execute(&op);
    1.24 -  } else {
    1.25 -    zombieAllCounter++;
    1.26    }
    1.27 +  zombieAllCounter++;
    1.28  }
    1.29  
    1.30  void InterfaceSupport::unlinkSymbols() {
    1.31 @@ -206,12 +209,17 @@
    1.32  }
    1.33  
    1.34  void InterfaceSupport::deoptimizeAll() {
    1.35 -  if (is_init_completed() ) {
    1.36 -    if (DeoptimizeALot && deoptimizeAllCounter > DeoptimizeALotInterval) {
    1.37 +  // This method is called by all threads when a thread make
    1.38 +  // transition to VM state (for example, runtime calls).
    1.39 +  // Divide number of calls by number of threads to avoid
    1.40 +  // dependence of DeoptimizeAll events frequency on number of threads.
    1.41 +  int value = deoptimizeAllCounter / Threads::number_of_threads();
    1.42 +  if (is_init_completed()) {
    1.43 +    if (DeoptimizeALot && value > DeoptimizeALotInterval) {
    1.44        deoptimizeAllCounter = 0;
    1.45        VM_DeoptimizeAll op;
    1.46        VMThread::execute(&op);
    1.47 -    } else if (DeoptimizeRandom && (deoptimizeAllCounter & 0x1f) == (os::random() & 0x1f)) {
    1.48 +    } else if (DeoptimizeRandom && (value & 0x1F) == (os::random() & 0x1F)) {
    1.49        VM_DeoptimizeAll op;
    1.50        VMThread::execute(&op);
    1.51      }