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  1. MariaDB Server
  2. MDEV-6533

MySQL Bug#72718 - CACHE_LINE_SIZE in innodb should be 128 on POWER

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    Description

      The following patch is suggested by Stewart Smith:

      Define CACHE_LINE_SIZE in ut0counter.h to 128 on POWER
      		 
       
      		 
      Index: mysql-5.6.17/storage/innobase/include/ut0counter.h
      		 
      ===================================================================
      		 
      --- mysql-5.6.17.orig/storage/innobase/include/ut0counter.h
      		 
      +++ mysql-5.6.17/storage/innobase/include/ut0counter.h
      		 
      @@ -32,7 +32,11 @@ Created 2012/04/12 by Sunny Bains
      		 
       #include "os0thread.h"
      		 
       
      		 
       /** CPU cache line size */
      		 
      +#ifdef __powerpc__
      		 
      +#define CACHE_LINE_SIZE                128
      		 
      +#else
      		 
       #define CACHE_LINE_SIZE                64
      		 
      +#endif
      		 
       
      		 
       /** Default number of slots to use in ib_counter_t */
      		 
       #define IB_N_SLOTS             64

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          is part of

          Task - A task that needs to be done. MDEV-6530 Examine and apply Power8 patches suggested by Stewart Smith

          • Major - Major loss of function.
          • Closed
          relates to

          Task - A task that needs to be done. MDEV-9857 CACHE_LINE_SIZE in innodb should be 128 on POWER

          • Major - Major loss of function.
          • Closed
          links to

          Web Link MySQL BUG#72718

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              svoj Sergey Vojtovich
              svoj Sergey Vojtovich
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