src/hotspot/share/gc/g1/g1Analytics.cpp

rev 59792 : imported patch 8244603-sjohanss-review

@@ -222,11 +222,15 @@
 void G1Analytics::report_rs_length(double rs_length) {
   _rs_length_seq->add(rs_length);
 }
 
 double G1Analytics::predict_alloc_rate_ms() const {
+  if (enough_samples_available(_alloc_rate_ms_seq)) {
   return predict_zero_bounded(_alloc_rate_ms_seq);
+  } else {
+    return 0.0;
+  }
 }
 
 double G1Analytics::predict_concurrent_refine_rate_ms() const {
   return predict_zero_bounded(_concurrent_refine_rate_ms_seq);
 }