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- tuning primer result
- -- MYSQL PERFORMANCE TUNING PRIMER --
- - By: Matthew Montgomery -
- MySQL Version 5.5.36-cll x86_64
- Uptime = 6 days 11 hrs 34 min 44 sec
- Avg. qps = 122
- Total Questions = 68808780
- Threads Connected = 12
- Server has been running for over 48hrs.
- It should be safe to follow these recommendations
- To find out more information on how each of these
- runtime variables effects performance visit:
- http://dev.mysql.com/doc/refman/5.5/en/server-system-variables.html
- Visit http://www.mysql.com/products/enterprise/advisors.html
- for info about MySQL's Enterprise Monitoring and Advisory Service
- SLOW QUERIES
- The slow query log is NOT enabled.
- Current long_query_time = 10.000000 sec.
- You have 27500 out of 68809061 that take longer than 10.000000 sec. to complete
- Your long_query_time seems to be fine
- BINARY UPDATE LOG
- The binary update log is NOT enabled.
- You will not be able to do point in time recovery
- See http://dev.mysql.com/doc/refman/5.5/en/point-in-time-recovery.html
- WORKER THREADS
- Current thread_cache_size = 12
- Current threads_cached = 9
- Current threads_per_sec = 0
- Historic threads_per_sec = 0
- Your thread_cache_size is fine
- MAX CONNECTIONS
- Current max_connections = 200
- Current threads_connected = 11
- Historic max_used_connections = 201
- The number of used connections is 100% of the configured maximum.
- You should raise max_connections
- INNODB STATUS
- Current InnoDB index space = 381 M
- Current InnoDB data space = 300 M
- Current InnoDB buffer pool free = 0 %
- Current innodb_buffer_pool_size = 400 M
- Depending on how much space your innodb indexes take up it may be safe
- to increase this value to up to 2 / 3 of total system memory
- MEMORY USAGE
- Max Memory Ever Allocated : 4.39 G
- Configured Max Per-thread Buffers : 3.63 G
- Configured Max Global Buffers : 758 M
- Configured Max Memory Limit : 4.37 G
- Physical Memory : 14.16 G
- Max memory limit seem to be within acceptable norms
- KEY BUFFER
- Current MyISAM index space = 1.05 G
- Current key_buffer_size = 8 M
- Key cache miss rate is 1 : 20
- Key buffer free ratio = 80 %
- Your key_buffer_size seems to be fine
- QUERY CACHE
- Query cache is enabled
- Current query_cache_size = 334 M
- Current query_cache_used = 183 M
- Current query_cache_limit = 256 M
- Current Query cache Memory fill ratio = 54.89 %
- Current query_cache_min_res_unit = 4 K
- MySQL won't cache query results that are larger than query_cache_limit in size
- SORT OPERATIONS
- Current sort_buffer_size = 2 M
- Current read_rnd_buffer_size = 256 K
- Sort buffer seems to be fine
- JOINS
- Current join_buffer_size = 16.00 M
- You have had 118697 queries where a join could not use an index properly
- You have had 127057 joins without keys that check for key usage after each row
- join_buffer_size >= 4 M
- This is not advised
- You should enable "log-queries-not-using-indexes"
- Then look for non indexed joins in the slow query log.
- OPEN FILES LIMIT
- Current open_files_limit = 43762 files
- The open_files_limit should typically be set to at least 2x-3x
- that of table_cache if you have heavy MyISAM usage.
- Your open_files_limit value seems to be fine
- TABLE CACHE
- Current table_open_cache = 512 tables
- Current table_definition_cache = 400 tables
- You have a total of 7754 tables
- You have 512 open tables.
- Current table_cache hit rate is 0%
- , while 100% of your table cache is in use
- You should probably increase your table_cache
- You should probably increase your table_definition_cache value.
- TEMP TABLES
- Current max_heap_table_size = 1.00 G
- Current tmp_table_size = 1.00 G
- Of 2618612 temp tables, 32% were created on disk
- Perhaps you should increase your tmp_table_size and/or max_heap_table_size
- to reduce the number of disk-based temporary tables
- Note! BLOB and TEXT columns are not allow in memory tables.
- If you are using these columns raising these values might not impact your
- ratio of on disk temp tables.
- TABLE SCANS
- Current read_buffer_size = 128 K
- Current table scan ratio = 2555 : 1
- read_buffer_size seems to be fine
- TABLE LOCKING
- Current Lock Wait ratio = 1 : 667
- You may benefit from selective use of InnoDB.
- If you have long running SELECT's against MyISAM tables and perform
- frequent updates consider setting 'low_priority_updates=1'
- If you have a high concurrency of inserts on Dynamic row-length tables
- consider setting 'concurrent_insert=ALWAYS'.
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