src/hotspot/share/gc/shared/taskqueue.hpp

rev 53303 : 8248214: Add paddings for TaskQueueSuper to reduce false-sharing cache contention
Summary: Add paddings for TaskQueueSuper to reduce false-sharing cache contention
Reviewed-by: robm

*** 147,156 ****
--- 147,158 ----
        size_t _data;
        fields _fields;
      };
    };
  
+   // Add paddings to reduce false-sharing cache contention between _bottom and _age
+   DEFINE_PAD_MINUS_SIZE(0, DEFAULT_CACHE_LINE_SIZE, sizeof(_bottom));
    volatile Age _age;
  
    // These both operate mod N.
    static uint increment_index(uint ind) {
      return (ind + 1) & MOD_N_MASK;