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Mar 22nd, 2015
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  1. root@vm1:~# ./mysqltuner.pl
  2.  
  3. >> MySQLTuner 1.4.0 - Major Hayden <major@mhtx.net>
  4. >> Bug reports, feature requests, and downloads at http://mysqltuner.com/
  5. >> Run with '--help' for additional options and output filtering
  6. [OK] Logged in using credentials from debian maintenance account.
  7. [OK] Currently running supported MySQL version 5.5.42-MariaDB-1~wheezy-log
  8. [OK] Operating on 64-bit architecture
  9.  
  10. -------- Storage Engine Statistics -------------------------------------------
  11. [--] Status: +ARCHIVE +Aria +BLACKHOLE +CSV +FEDERATED +InnoDB +MRG_MYISAM +SPHINX
  12. [--] Data in MyISAM tables: 325K (Tables: 2)
  13. [--] Data in InnoDB tables: 2G (Tables: 54)
  14. [--] Data in PERFORMANCE_SCHEMA tables: 0B (Tables: 17)
  15. [!!] Total fragmented tables: 12
  16.  
  17. -------- Security Recommendations -------------------------------------------
  18. [OK] All database users have passwords assigned
  19.  
  20. -------- Performance Metrics -------------------------------------------------
  21. [--] Up for: 4h 59m 16s (37M q [2K qps], 4M conn, TX: 7B, RX: 8B)
  22. [--] Reads / Writes: 78% / 22%
  23. [--] Total buffers: 15.1G global + 2.9M per thread (4000 max threads)
  24. [OK] Maximum possible memory usage: 26.5G (74% of installed RAM)
  25. [OK] Slow queries: 0% (214K/37M)
  26. [OK] Highest usage of available connections: 2% (97/4000)
  27. [OK] Key buffer size / total MyISAM indexes: 32.0M/132.0K
  28. [OK] Key buffer hit rate: 100.0% (3M cached / 13 reads)
  29. [!!] Query cache efficiency: 0.6% (133K cached / 20M selects)
  30. [OK] Query cache prunes per day: 0
  31. [OK] Sorts requiring temporary tables: 0% (41 temp sorts / 4M sorts)
  32. [OK] Temporary tables created on disk: 0% (10 on disk / 2M total)
  33. [OK] Thread cache hit rate: 99% (114 created / 4M connections)
  34. [OK] Table cache hit rate: 108% (334 open / 308 opened)
  35. [OK] Open file limit used: 0% (56/65K)
  36. [OK] Table locks acquired immediately: 100% (45M immediate / 45M locks)
  37. [OK] InnoDB buffer pool / data size: 15.0G/2.7G
  38. [OK] InnoDB log waits: 0
  39. -------- Recommendations -----------------------------------------------------
  40. General recommendations:
  41. Run OPTIMIZE TABLE to defragment tables for better performance
  42. MySQL started within last 24 hours - recommendations may be inaccurate
  43. Variables to adjust:
  44. query_cache_limit (> 2M, or use smaller result sets)
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