src/hotspot/share/gc/cms/parNewGeneration.cpp

*** 1302,1318 ****
    if (_overflow_list == NULL) return false;
  
    // Otherwise, there was something there; try claiming the list.
    oop prefix = cast_to_oop(Atomic::xchg((oopDesc*)BUSY, &_overflow_list));
    // Trim off a prefix of at most objsFromOverflow items
-   Thread* tid = Thread::current();
    size_t spin_count = ParallelGCThreads;
    size_t sleep_time_millis = MAX2((size_t)1, objsFromOverflow/100);
    for (size_t spin = 0; prefix == BUSY && spin < spin_count; spin++) {
      // someone grabbed it before we did ...
!     // ... we spin for a short while...
!     os::sleep(tid, sleep_time_millis, false);
      if (_overflow_list == NULL) {
        // nothing left to take
        return false;
      } else if (_overflow_list != BUSY) {
       // try and grab the prefix
--- 1302,1317 ----
    if (_overflow_list == NULL) return false;
  
    // Otherwise, there was something there; try claiming the list.
    oop prefix = cast_to_oop(Atomic::xchg((oopDesc*)BUSY, &_overflow_list));
    // Trim off a prefix of at most objsFromOverflow items
    size_t spin_count = ParallelGCThreads;
    size_t sleep_time_millis = MAX2((size_t)1, objsFromOverflow/100);
    for (size_t spin = 0; prefix == BUSY && spin < spin_count; spin++) {
      // someone grabbed it before we did ...
!     // ... we spin/block for a short while...
!     os::naked_sleep(sleep_time_millis);
      if (_overflow_list == NULL) {
        // nothing left to take
        return false;
      } else if (_overflow_list != BUSY) {
       // try and grab the prefix