src/hotspot/share/gc/g1/g1YoungRemSetSamplingThread.cpp

rev 60420 : imported patch 8248401-Refactor-unify-RMI-gc-support-functionality

*** 54,71 ****
      ml.wait(waitms);
    }
  }
  
  bool G1YoungRemSetSamplingThread::should_start_periodic_gc() {
    // If we are currently in a concurrent mark we are going to uncommit memory soon.
!   if (G1CollectedHeap::heap()->concurrent_mark()->cm_thread()->during_cycle()) {
      log_debug(gc, periodic)("Concurrent cycle in progress. Skipping.");
      return false;
    }
  
    // Check if enough time has passed since the last GC.
!   uintx time_since_last_gc = (uintx)Universe::heap()->millis_since_last_gc();
    if ((time_since_last_gc < G1PeriodicGCInterval)) {
      log_debug(gc, periodic)("Last GC occurred " UINTX_FORMAT "ms before which is below threshold " UINTX_FORMAT "ms. Skipping.",
                              time_since_last_gc, G1PeriodicGCInterval);
      return false;
    }
--- 54,72 ----
      ml.wait(waitms);
    }
  }
  
  bool G1YoungRemSetSamplingThread::should_start_periodic_gc() {
+   G1CollectedHeap* g1h = G1CollectedHeap::heap();
    // If we are currently in a concurrent mark we are going to uncommit memory soon.
!   if (g1h->concurrent_mark()->cm_thread()->during_cycle()) {
      log_debug(gc, periodic)("Concurrent cycle in progress. Skipping.");
      return false;
    }
  
    // Check if enough time has passed since the last GC.
!   uintx time_since_last_gc = (uintx)g1h->time_since_last_collection().milliseconds();
    if ((time_since_last_gc < G1PeriodicGCInterval)) {
      log_debug(gc, periodic)("Last GC occurred " UINTX_FORMAT "ms before which is below threshold " UINTX_FORMAT "ms. Skipping.",
                              time_since_last_gc, G1PeriodicGCInterval);
      return false;
    }