Запустил - вот что выдало:
[OK] Logged in using credentials from debian maintenance account.
>> MySQLTuner 1.6.4 - Major Hayden <major@mhtx.net>
>> Bug reports, feature requests, and downloads at
Для просмотра ссылки Войди или Зарегистрируйся
>> Run with '--help' for additional options and output filtering
[--] Skipped version check for MySQLTuner script
[OK] Currently running supported MySQL version 5.5.46-0+deb7u1-log
[OK] Operating on 64-bit architecture
-------- Storage Engine Statistics -------------------------------------------
[--] Status: +ARCHIVE +BLACKHOLE +CSV -FEDERATED +InnoDB +MRG_MYISAM
[--] Data in MyISAM tables: 183M (Tables: 183)
[--] Data in InnoDB tables: 106M (Tables: 299)
[!!] Total fragmented tables: 299
-------- Security Recommendations -------------------------------------------
[OK] There are no anonymous accounts for any database users
[OK] All database users have passwords assigned
[!!] User '@%' hasn't specific host restriction.
[!!] There is no basic password file list!
-------- CVE Security Recommendations ---------------------------------------
[--] Skipped due to --cvefile option undefined
-------- Performance Metrics -------------------------------------------------
[--] Up for: 16d 16h 0m 27s (100M q [70.118 qps], 550K conn, TX: 83B, RX: 22B)
[--] Reads / Writes: 99% / 1%
[--] Binary logging is disabled
[--] Total buffers: 1.5G global + 40.5M per thread (151 max threads)
[OK] Maximum reached memory usage: 2.6G (32.79% of installed RAM)
[!!] Maximum possible memory usage: 7.5G (93.60% of installed RAM)
[OK] Slow queries: 0% (2K/100M)
[OK] Highest usage of available connections: 18% (28/151)
[OK] Aborted connections: 0.01% (59/550826)
[OK] Query cache efficiency: 73.0% (71M cached / 97M selects)
[!!] Query cache prunes per day: 288213
[OK] Sorts requiring temporary tables: 0% (1K temp sorts / 19M sorts)
[!!] Joins performed without indexes: 22027
[OK] Temporary tables created on disk: 9% (78K on disk / 841K total)
[OK] Thread cache hit rate: 99% (29 created / 550K connections)
[OK] Table cache hit rate: 42% (1K open / 2K opened)
[OK] Open file limit used: 9% (785/8K)
[OK] Table locks acquired immediately: 99% (33M immediate / 33M locks)
-------- MyISAM Metrics ------------------------------------------------------
[!!] Key buffer used: 20.3% (217M used / 1B cache)
[OK] Key buffer size / total MyISAM indexes: 1.0G/78.3M
[OK] Read Key buffer hit rate: 100.0% (10B cached / 48K reads)
[OK] Write Key buffer hit rate: 99.8% (65M cached / 141K writes)
-------- InnoDB Metrics ------------------------------------------------------
[--] InnoDB is enabled.
[OK] InnoDB buffer pool / data size: 128.0M/106.2M
[OK] InnoDB buffer pool instances: 1
[OK] InnoDB Used buffer: 91.87% (7525 used/ 8191 total)
[OK] InnoDB Read buffer efficiency: 100.00% (230436224 hits/ 230442108 total)
[!!] InnoDB Write buffer efficiency: 0.00% (0 hits/ 1 total)
[OK] InnoDB log waits: 0.00% (0 waits / 30078 writes)
-------- ThreadPool Metrics --------------------------------------------------
[--] ThreadPool stat is disabled.
-------- AriaDB Metrics ------------------------------------------------------
[--] AriaDB is disabled.
-------- TokuDB Metrics ------------------------------------------------------
[--] TokuDB is disabled.
-------- Galera Metrics ------------------------------------------------------
[--] Galera is disabled.
-------- Replication Metrics -------------------------------------------------
[--] No replication slave(s) for this server.
[--] This is a standalone server..
-------- Recommendations -----------------------------------------------------
General recommendations:
Run OPTIMIZE TABLE to defragment tables for better performance
Restrict Host for user@% to user@SpecificDNSorIp
Reduce your overall MySQL memory footprint for system stability
Increasing the query_cache size over 128M may reduce performance
Adjust your join queries to always utilize indexes
Variables to adjust:
*** MySQL's maximum memory usage is dangerously high ***
*** Add RAM before increasing MySQL buffer variables ***
query_cache_size (> 256M) [see warning above]
join_buffer_size (> 18.0M, or always use indexes with joins)