Mysql tuner:
[--] Up for: 2m 0s (17K q [144.108 qps], 2K conn, TX: 37M, RX: 2M)
[--] Reads / Writes: 53% / 47%
[--] Total buffers: 1.1G global + 5.4M per thread (600 max threads)
[!!] Allocating > 2GB RAM on 32-bit systems can cause system instability
[!!] Maximum possible memory usage: 4.3G (107% of installed RAM)
[OK] Slow queries: 0% (0/17K)
[OK] Highest usage of available connections: 1% (7/600)
[OK] Key buffer size / total MyISAM indexes: 900.0M/880.9M
[OK] Key buffer hit rate: 96.2% (212K cached / 8K reads)
[OK] Query cache efficiency: 71.9% (5K cached / 7K selects)
[OK] Query cache prunes per day: 0
[OK] Sorts requiring temporary tables: 0% (0 temp sorts / 464 sorts)
[OK] Temporary tables created on disk: 1% (6 on disk / 367 total)
[OK] Thread cache hit rate: 99% (7 created / 2K connections)
[OK] Table cache hit rate: 91% (61 open / 67 opened)
[OK] Open file limit used: 3% (113/3K)
[OK] Table locks acquired immediately: 99% (5K immediate / 5K locks)
