src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.cpp

*** 73,86 ****
    _collector = collector;
  
    set_name("Concurrent Mark-Sweep GC Thread");
  
    if (os::create_thread(this, os::cgc_thread)) {
!     // XXX: need to set this to low priority
!     // unless "agressive mode" set; priority
!     // should be just less than that of VMThread.
!     os::set_priority(this, NearMaxPriority);
      if (!DisableStartThread) {
        os::start_thread(this);
      }
    }
    _sltMonitor = SLT_lock;
--- 73,91 ----
    _collector = collector;
  
    set_name("Concurrent Mark-Sweep GC Thread");
  
    if (os::create_thread(this, os::cgc_thread)) {
!     // Priority should be just less than that of VMThread.
!     int native_prio;
!     if (UseCriticalCMSThreadPriority) {
!       native_prio = os::java_to_os_priority[CriticalPriority];
!     } else {
!       native_prio = os::java_to_os_priority[NearMaxPriority];
!     }
!     os::set_native_priority(this, native_prio);
! 
      if (!DisableStartThread) {
        os::start_thread(this);
      }
    }
    _sltMonitor = SLT_lock;