Backport 80db6e71b092867212147bd369a9fda65dbd4b70

openjdk-bots · Oct 4, 2024 · 7ad71b6 · 7ad71b6
1 parent c673c52
commit 7ad71b6
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
@@ -488,7 +488,8 @@ static bool rule_major_allocation_rate(const ZDirectorStats& stats) {
 
   // Calculate the GC cost for each reclaimed byte
   const double current_young_gc_time_per_bytes_freed = double(young_gc_time) / double(reclaimed_per_young_gc);
-  const double current_old_gc_time_per_bytes_freed = double(old_gc_time) / double(reclaimed_per_old_gc);
+  const double current_old_gc_time_per_bytes_freed = reclaimed_per_old_gc == 0 ? std::numeric_limits<double>::infinity()
+                                                                               : (double(old_gc_time) / double(reclaimed_per_old_gc));
 
   // Calculate extra time per young collection inflicted by *not* doing an
   // old collection that frees up memory in the old generation.