JDK-8336911

MBaesken · Oct 2, 2024 · 5debdae · 5debdae
1 parent 855c8a7
commit 5debdae
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/hotspot/share/gc/z/zDirector.cpp b/src/hotspot/share/gc/z/zDirector.cpp
@@ -535,7 +535,8 @@ static double calculate_young_to_old_worker_ratio(const ZDirectorStats& stats) {
   const size_t reclaimed_per_old_gc = stats._old_stats._stat_heap._reclaimed_avg;
   const double current_young_bytes_freed_per_gc_time = double(reclaimed_per_young_gc) / double(young_gc_time);
   const double current_old_bytes_freed_per_gc_time = double(reclaimed_per_old_gc) / double(old_gc_time);
-  const double old_vs_young_efficiency_ratio = current_old_bytes_freed_per_gc_time / current_young_bytes_freed_per_gc_time;
+  const double old_vs_young_efficiency_ratio = current_young_bytes_freed_per_gc_time == 0 ? std::numeric_limits<double>::infinity()
+                                                                                          : current_old_bytes_freed_per_gc_time / current_young_bytes_freed_per_gc_time;
 
   return old_vs_young_efficiency_ratio;
 }