Commit e9ea2961 authored by unknown's avatar unknown
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Fixed BUG#15868: InnoDB hangs under 200 threads making INSERTs: 'thread thrashing'. 

 Applied changes due Heikki Tuuri.


sql/mysqld.cc:
  Set innodb_thread_concurrency default value to 8 (Bug#15868).
   Changes due to Heikki Tuuri.
parent 35be8c88

sql/mysqld.cc

+1 −1
Original line number Diff line number Diff line
@@ -5531,7 +5531,7 @@ log and this option does nothing anymore.", 
   "Sets the maximum number of threads allowed inside InnoDB. Value 0"

   " will disable the thread throttling.",

   (gptr*) &srv_thread_concurrency, (gptr*) &srv_thread_concurrency,

   0, GET_LONG, REQUIRED_ARG, 0, 0, 1000, 0, 1, 0},

   0, GET_LONG, REQUIRED_ARG, 8, 0, 1000, 0, 1, 0},

  {"innodb_thread_sleep_delay", OPT_INNODB_THREAD_SLEEP_DELAY,

   "Time of innodb thread sleeping before joining InnoDB queue (usec). Value 0"

    " disable a sleep",