Created
July 17, 2013 22:31
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-------- Storage Engine Statistics ------------------------------------------- | |
[--] Status: -Archive -BDB -Federated +InnoDB -ISAM -NDBCluster | |
[--] Data in MyISAM tables: 0B (Tables: 9) | |
[--] Data in InnoDB tables: 11G (Tables: 1411) | |
[!!] Total fragmented tables: 173 | |
-------- Performance Metrics ------------------------------------------------- | |
[--] Up for: 30d 8h 1m 47s (61M q [23.355 qps], 151K conn, TX: 153B, RX: 20B) | |
[--] Reads / Writes: 40% / 60% | |
[--] Total buffers: 442.0M global + 12.4M per thread (151 max threads) | |
[OK] Maximum possible memory usage: 2.3G (56% of installed RAM) | |
[OK] Slow queries: 0% (413/61M) | |
[OK] Highest usage of available connections: 10% (16/151) | |
[OK] Key buffer size / total MyISAM indexes: 384.0M/112.0K | |
[OK] Key buffer hit rate: 100.0% (35K cached / 0 reads) | |
[OK] Query cache efficiency: 47.6% (12M cached / 26M selects) | |
[!!] Query cache prunes per day: 50966 | |
[OK] Sorts requiring temporary tables: 0% (0 temp sorts / 397K sorts) | |
[OK] Temporary tables created on disk: 25% (14K on disk / 58K total) | |
[OK] Thread cache hit rate: 99% (16 created / 151K connections) | |
[!!] Table cache hit rate: 2% (504 open / 22K opened) | |
[OK] Open file limit used: 0% (0/65K) | |
[OK] Table locks acquired immediately: 99% (35M immediate / 35M locks) | |
[!!] InnoDB data size / buffer pool: 11.0G/8.0M | |
-------- Recommendations ----------------------------------------------------- | |
General recommendations: | |
Run OPTIMIZE TABLE to defragment tables for better performance | |
Enable the slow query log to troubleshoot bad queries | |
Increase table_cache gradually to avoid file descriptor limits | |
Variables to adjust: | |
query_cache_size (> 32M) | |
table_cache (> 512) | |
innodb_buffer_pool_size (>= 11G) |
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