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May 1st, 2016
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  1. ----------------------
  2. BUFFER POOL AND MEMORY
  3. ----------------------
  4. Total memory allocated 6593445888; in additional pool allocated 0
  5. Dictionary memory allocated 1758417
  6. Buffer pool size 393215
  7. Free buffers 853
  8. Database pages 360515
  9. Old database pages 133060
  10. Modified db pages 300
  11. Pending reads 0
  12. Pending writes: LRU 0, flush list 0, single page 0
  13. Pages made young 7365790, not young 23099457
  14. 0.00 youngs/s, 0.00 non-youngs/s
  15. Pages read 1094342, created 185628, written 543182148
  16. 0.00 reads/s, 0.00 creates/s, 37.32 writes/s
  17. Buffer pool hit rate 1000 / 1000, young-making rate 0 / 1000 not 0 / 1000
  18. Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
  19. LRU len: 360515, unzip_LRU len: 0
  20. I/O sum[2571]:cur[0], unzip sum[0]:cur[0]
  21.  
  22.  Buffer pool hit rate is 1000 / 1000
  23.  
  24. SELECT FORMAT(BufferPoolPages*PageSize/POWER(1024,3),2) BufferPoolDataGB FROM
  25. (SELECT variable_value BufferPoolPages FROM information_schema.global_status
  26. WHERE variable_name = 'Innodb_buffer_pool_pages_total') A,
  27. (SELECT variable_value PageSize FROM information_schema.global_status
  28. WHERE variable_name = 'Innodb_page_size') B;
  29.  
  30. SELECT FORMAT(BufferPoolPages*PageSize/POWER(1024,3),2) BufferPoolDataGB FROM
  31. (SELECT variable_value BufferPoolPages FROM information_schema.global_status
  32. WHERE variable_name = 'Innodb_buffer_pool_pages_data') A,
  33. (SELECT variable_value PageSize FROM information_schema.global_status
  34. WHERE variable_name = 'Innodb_page_size') B;
  35.  
  36. SELECT CONCAT(FORMAT(DataPages*100.0/TotalPages,2),' %') BufferPoolDataPercentage FROM
  37. (SELECT variable_value DataPages FROM information_schema.global_status
  38. WHERE variable_name = 'Innodb_buffer_pool_pages_data') A,
  39. (SELECT variable_value TotalPages FROM information_schema.global_status
  40. WHERE variable_name = 'Innodb_buffer_pool_pages_total') B;
  41.  
  42. SELECT FORMAT(DirtyPages*PageSize/POWER(1024,3),2) BufferPoolDirtyGB FROM
  43. (SELECT variable_value DirtyPages FROM information_schema.global_status
  44. WHERE variable_name = 'Innodb_buffer_pool_pages_dirty') A,
  45. (SELECT variable_value PageSize FROM information_schema.global_status
  46. WHERE variable_name = 'Innodb_page_size') B;
  47.  
  48. SELECT CONCAT(FORMAT(DirtyPages*100.0/TotalPages,2),' %') BufferPoolDirtyPercentage FROM
  49. (SELECT variable_value DirtyPages FROM information_schema.global_status
  50. WHERE variable_name = 'Innodb_buffer_pool_pages_dirty') A,
  51. (SELECT variable_value TotalPages FROM information_schema.global_status
  52. WHERE variable_name = 'Innodb_buffer_pool_pages_total') B;
  53.  
  54. SHOW GLOBAL STATUS LIKE 'Innodb_buffer_pool%';
  55.  
  56. Per second averages calculated from the last 16 seconds
  57.  
  58. 0.00 reads/s, 0.00 creates/s, 37.32 writes/s
  59. Buffer pool hit rate 1000 / 1000, young-making rate 0 / 1000 not 0 / 1000
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