gistfile1.txt

 >>  MySQLTuner 1.4.0 - Major Hayden <major@mhtx.net>
 >>  Bug reports, feature requests, and downloads at http://mysqltuner.com/
 >>  Run with '--help' for additional options and output filtering
[--] Performing tests on aa1b6ongzhnykri.ckeugrtmtumo.us-west-2.rds.amazonaws.com:3306
[OK] Logged in using credentials passed on the command line
[--] Assuming 15000 MB of physical memory
[!!] Assuming 0 MB of swap space (use --forceswap to specify)
[OK] Currently running supported MySQL version 5.6.21-log

-------- Storage Engine Statistics -------------------------------------------
[--] Status: +ARCHIVE +BLACKHOLE +CSV -FEDERATED +InnoDB +MRG_MYISAM 
[--] Data in InnoDB tables: 95M (Tables: 29)
[--] Data in PERFORMANCE_SCHEMA tables: 0B (Tables: 52)
[!!] Total fragmented tables: 9

-------- Security Recommendations  -------------------------------------------
[OK] All database users have passwords assigned

-------- Performance Metrics -------------------------------------------------
[--] Up for: 19d 17h 58m 22s (274M q [161.067 qps], 3M conn, TX: 2209B, RX: 31B)
[--] Reads / Writes: 99% / 1%
[--] Total buffers: 11.1G global + 1.5M per thread (1232 max threads)
[!!] Maximum possible memory usage: 12.9G (88% of installed RAM)
[OK] Slow queries: 0% (59K/274M)
[OK] Highest usage of available connections: 14% (174/1232)
[OK] Key buffer size / total MyISAM indexes: 16.0M/2.4M
[OK] Key buffer hit rate: 100.0% (5M cached / 502 reads)
[OK] Query cache efficiency: 45.2% (116M cached / 257M selects)
[OK] Query cache prunes per day: 0
[OK] Sorts requiring temporary tables: 0% (121 temp sorts / 7M sorts)
[!!] Temporary tables created on disk: 43% (2M on disk / 6M total)
[OK] Thread cache hit rate: 99% (1K created / 3M connections)
[!!] Table cache hit rate: 1% (1K open / 126K opened)
[OK] Open file limit used: 0% (127/65K)
[OK] Table locks acquired immediately: 99% (146M immediate / 146M locks)
[OK] InnoDB buffer pool / data size: 10.8G/95.8M
[OK] InnoDB log waits: 0
-------- Recommendations -----------------------------------------------------
General recommendations:
    Run OPTIMIZE TABLE to defragment tables for better performance
    Reduce your overall MySQL memory footprint for system stability
    When making adjustments, make tmp_table_size/max_heap_table_size equal
    Reduce your SELECT DISTINCT queries without LIMIT clauses
    Increase table_open_cache gradually to avoid file descriptor limits
    Read this before increasing table_open_cache over 64: http://bit.ly/1mi7c4C
Variables to adjust:
    tmp_table_size (> 16M)
    max_heap_table_size (> 16M)
    table_open_cache (> 2000)