mysqltuner.pl me dice esto:
>> MySQLTuner 1.3.0 - Major Hayden <major@mhtx.net>
>> Bug reports, feature requests, and downloads at
http://mysqltuner.com/
>> Run with '--help' for additional options and output filtering
[OK] Logged in using credentials from debian maintenance account.
[OK] Currently running supported MySQL version 5.5.37-0ubuntu0.12.04.1
[OK] Operating on 64-bit architecture
-------- Storage Engine Statistics -------------------------------------------
[--] Status: +ARCHIVE +BLACKHOLE +CSV -FEDERATED +InnoDB +MRG_MYISAM
[--] Data in MyISAM tables: 4M (Tables: 123)
[--] Data in InnoDB tables: 20M (Tables: 177)
[--] Data in PERFORMANCE_SCHEMA tables: 0B (Tables: 17)
[!!] Total fragmented tables: 179
-------- Security Recommendations -------------------------------------------
[OK] All database users have passwords assigned
-------- Performance Metrics -------------------------------------------------
[--] Up for: 43s (1K q [24.419 qps], 188 conn, TX: 1M, RX: 105K)
[--] Reads / Writes: 92% / 8%
[--] Total buffers: 192.0M global + 2.6M per thread (151 max threads)
[OK] Maximum possible memory usage: 588.4M (59% of installed RAM)
[OK] Slow queries: 0% (0/1K)
[OK] Highest usage of available connections: 2% (4/151)
[OK] Key buffer size / total MyISAM indexes: 16.0M/2.7M
[OK] Key buffer hit rate: 95.1% (3K cached / 186 reads)
[OK] Query cache efficiency: 26.7% (204 cached / 765 selects)
[OK] Query cache prunes per day: 0
[OK] Sorts requiring temporary tables: 0% (0 temp sorts / 69 sorts)
[!!] Joins performed without indexes: 1
[OK] Temporary tables created on disk: 20% (64 on disk / 307 total)
[OK] Thread cache hit rate: 97% (4 created / 188 connections)
[OK] Table cache hit rate: 24% (341 open / 1K opened)
[OK] Open file limit used: 28% (294/1K)
[OK] Table locks acquired immediately: 100% (475 immediate / 475 locks)
[OK] InnoDB buffer pool / data size: 128.0M/20.2M
[OK] InnoDB log waits: 0
-------- Recommendations -----------------------------------------------------
General recommendations:
Run OPTIMIZE TABLE to defragment tables for better performance
MySQL started within last 24 hours - recommendations may be inaccurate
Enable the slow query log to troubleshoot bad queries
Adjust your join queries to always utilize indexes
Variables to adjust:
join_buffer_size (> 128.0K, or always use indexes with joins)