src/hotspot/share/runtime/thread.hpp

rev 47862 : imported patch 10.07.open.rebase_20171110.dcubed
rev 47865 : dholmes CR: Fix indents, trailing spaces and various typos. Add descriptions for the '_cnt', '_max' and '_times" fields, add impl notes to document the type choices.

*** 2128,2155 ****
   private:
    // Safe Memory Reclamation (SMR) support:
    static Monitor*              _smr_delete_lock;
    // The '_cnt', '_max' and '_times" fields are enabled via
    // -XX:+EnableThreadSMRStatistics:
    static uint                  _smr_delete_lock_wait_cnt;
    static uint                  _smr_delete_lock_wait_max;
!   static volatile jint         _smr_delete_notify;
!   static volatile jint         _smr_deleted_thread_cnt;
!   static volatile jint         _smr_deleted_thread_time_max;
!   static volatile jint         _smr_deleted_thread_times;
    static ThreadsList* volatile _smr_java_thread_list;
    static ThreadsList*          get_smr_java_thread_list();
    static ThreadsList*          xchg_smr_java_thread_list(ThreadsList* new_list);
!   static long                  _smr_java_thread_list_alloc_cnt;
!   static long                  _smr_java_thread_list_free_cnt;
    static uint                  _smr_java_thread_list_max;
    static uint                  _smr_nested_thread_list_max;
!   static volatile jint         _smr_tlh_cnt;
!   static volatile jint         _smr_tlh_time_max;
!   static volatile jint         _smr_tlh_times;
    static ThreadsList*          _smr_to_delete_list;
    static uint                  _smr_to_delete_list_cnt;
    static uint                  _smr_to_delete_list_max;
  
    static JavaThread*           _thread_list;
    static int                   _number_of_threads;
    static int                   _number_of_non_daemon_threads;
--- 2128,2170 ----
   private:
    // Safe Memory Reclamation (SMR) support:
    static Monitor*              _smr_delete_lock;
    // The '_cnt', '_max' and '_times" fields are enabled via
    // -XX:+EnableThreadSMRStatistics:
+                                        // # of parallel threads in _smr_delete_lock->wait().
    static uint                  _smr_delete_lock_wait_cnt;
+                                        // Max # of parallel threads in _smr_delete_lock->wait().
    static uint                  _smr_delete_lock_wait_max;
!                                        // Flag to indicate when an _smr_delete_lock->notify() is needed.
!   static volatile uint         _smr_delete_notify;
!                                        // # of threads deleted over VM lifetime.
!   static volatile uint         _smr_deleted_thread_cnt;
!                                        // Max time in millis to delete a thread.
!   static volatile uint         _smr_deleted_thread_time_max;
!                                        // Cumulative time in millis to delete threads.
!   static volatile uint         _smr_deleted_thread_times;
    static ThreadsList* volatile _smr_java_thread_list;
    static ThreadsList*          get_smr_java_thread_list();
    static ThreadsList*          xchg_smr_java_thread_list(ThreadsList* new_list);
!                                        // # of ThreadsLists allocated over VM lifetime.
!   static uint64_t              _smr_java_thread_list_alloc_cnt;
!                                        // # of ThreadsLists freed over VM lifetime.
!   static uint64_t              _smr_java_thread_list_free_cnt;
!                                        // Max size ThreadsList allocated.
    static uint                  _smr_java_thread_list_max;
+                                        // Max # of nested ThreadsLists for a thread.
    static uint                  _smr_nested_thread_list_max;
!                                        // # of ThreadsListHandles deleted over VM lifetime.
!   static volatile uint         _smr_tlh_cnt;
!                                        // Max time in millis to delete a ThreadsListHandle.
!   static volatile uint         _smr_tlh_time_max;
!                                        // Cumulative time in millis to delete ThreadsListHandles.
!   static volatile uint         _smr_tlh_times;
    static ThreadsList*          _smr_to_delete_list;
+                                        // # of parallel ThreadsLists on the to-delete list.
    static uint                  _smr_to_delete_list_cnt;
+                                        // Max # of parallel ThreadsLists on the to-delete list.
    static uint                  _smr_to_delete_list_max;
  
    static JavaThread*           _thread_list;
    static int                   _number_of_threads;
    static int                   _number_of_non_daemon_threads;
*** 2197,2211 ****
    // locking in order to reduce the traffic on the smr_delete_lock.
    static bool smr_delete_notify();
    static void set_smr_delete_notify();
    static void clear_smr_delete_notify();
    static void inc_smr_deleted_thread_cnt();
!   static void update_smr_deleted_thread_time_max(jint new_value);
!   static void add_smr_deleted_thread_times(jint add_value);
    static void inc_smr_tlh_cnt();
!   static void update_smr_tlh_time_max(jint new_value);
!   static void add_smr_tlh_times(jint add_value);
  
    // Initializes the vm and creates the vm thread
    static jint create_vm(JavaVMInitArgs* args, bool* canTryAgain);
    static void convert_vm_init_libraries_to_agents();
    static void create_vm_init_libraries();
--- 2212,2226 ----
    // locking in order to reduce the traffic on the smr_delete_lock.
    static bool smr_delete_notify();
    static void set_smr_delete_notify();
    static void clear_smr_delete_notify();
    static void inc_smr_deleted_thread_cnt();
!   static void update_smr_deleted_thread_time_max(uint new_value);
!   static void add_smr_deleted_thread_times(uint add_value);
    static void inc_smr_tlh_cnt();
!   static void update_smr_tlh_time_max(uint new_value);
!   static void add_smr_tlh_times(uint add_value);
  
    // Initializes the vm and creates the vm thread
    static jint create_vm(JavaVMInitArgs* args, bool* canTryAgain);
    static void convert_vm_init_libraries_to_agents();
    static void create_vm_init_libraries();