-------- General Statistics --------------------------------------------------
[--] Skipped version check for MySQLTuner script
[OK] Currently running supported MySQL version 5.1.56-log
[OK] Operating on 64-bit architecture
-------- Storage Engine Statistics -------------------------------------------
[--] Status: -Archive -BDB -Federated +InnoDB -ISAM -NDBCluster
[--] Data in MyISAM tables: 7G (Tables: 1814)
[--] Data in InnoDB tables: 3G (Tables: 567)
[--] Data in MEMORY tables: 6M (Tables: 34)
[!!] Total fragmented tables: 649
-------- Performance Metrics -------------------------------------------------
[--] Up for: 1d 1h 19m 39s (56M q [620.176 qps], 378K conn, TX: 90B, RX: 14B)
[--] Reads / Writes: 36% / 64%
[--] Total buffers: 34.0M global + 2.7M per thread (500 max threads)
[OK] Maximum possible memory usage: 1.4G (17% of installed RAM)
[OK] Slow queries: 0% (743/56M)
[OK] Highest usage of available connections: 15% (77/500)
[!!] Key buffer size / total MyISAM indexes: 8.0M/4.5G
[!!] Key buffer hit rate: 93.2% (1B cached / 110M reads)
[!!] Query cache is disabled
[OK] Sorts requiring temporary tables: 0% (470 temp sorts / 1M sorts)
[!!] Joins performed without indexes: 1518
[!!] Temporary tables created on disk: 41% (14K on disk / 34K total)
[!!] Thread cache is disabled
[!!] Table cache hit rate: 0% (64 open / 126K opened)
[OK] Open file limit used: 0% (22/2K)
[OK] Table locks acquired immediately: 99% (36M immediate / 36M locks)
[!!] InnoDB data size / buffer pool: 3.6G/8.0M
-------- Recommendations -----------------------------------------------------
General recommendations:
Run OPTIMIZE TABLE to defragment tables for better performance
Adjust your join queries to always utilize indexes
When making adjustments, make tmp_table_size/max_heap_table_size equal
Reduce your SELECT DISTINCT queries without LIMIT clauses
Set thread_cache_size to 4 as a starting value
Increase table_cache gradually to avoid file descriptor limits
Variables to adjust:
key_buffer_size (> 4.5G)
query_cache_size (>= 8M)
join_buffer_size (> 128.0K, or always use indexes with joins)
tmp_table_size (> 16M)
max_heap_table_size (> 16M)
thread_cache_size (start at 4)
table_cache (> 64)
innodb_buffer_pool_size (>= 3G)