opencode - MySQL conf

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        -- MYSQL PERFORMANCE TUNING PRIMER --
             - By: Matthew Montgomery -
MySQL Version 5.5.28-log x86_64
Uptime = 5 days 15 hrs 23 min 5 sec
Avg. qps = 25
Total Questions = 12496002
Threads Connected = 1
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 enabled.
Current long_query_time = 2.000000 sec.
You have 4 out of 12496023 that take longer than 2.000000 sec. to complete
Your long_query_time seems to be fine
BINARY UPDATE LOG
The binary update log is enabled
The expire_logs_days is not set.
The mysqld will retain the entire binary log until RESET MASTER or PURGE MASTER LOGS commands are run manually
Setting expire_logs_days will allow you to remove old binary logs automatically
See http://dev.mysql.com/doc/refman/5.5/en/purge-master-logs.html
Binlog sync is not enabled, you could loose binlog records during a server crash
WORKER THREADS
Current thread_cache_size = 8
Current threads_cached = 7
Current threads_per_sec = 0
Historic threads_per_sec = 0
Your thread_cache_size is fine
MAX CONNECTIONS
Current max_connections = 100
Current threads_connected = 1
Historic max_used_connections = 23
The number of used connections is 23% of the configured maximum.
Your max_connections variable seems to be fine.
INNODB STATUS
Current InnoDB index space = 66 M
Current InnoDB data space = 184 M
Current InnoDB buffer pool free = 92 %
Current innodb_buffer_pool_size = 2.00 G
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 : 2.90 G
Configured Max Per-thread Buffers : 3.43 G
Configured Max Global Buffers : 2.11 G
Configured Max Memory Limit : 5.55 G
Physical Memory : 3.73 G
Max memory limit exceeds 90% of physical memory
KEY BUFFER
Current MyISAM index space = 49 M
Current key_buffer_size = 32 M
Key cache miss rate is 1 : 2085
Key buffer free ratio = 54 %
Your key_buffer_size seems to be fine
QUERY CACHE
Query cache is enabled
Current query_cache_size = 64 M
Current query_cache_used = 31 M
Current query_cache_limit = 2 M
Current Query cache Memory fill ratio = 48.55 %
Current query_cache_min_res_unit = 4 K
Query Cache is 21 % fragmented
Run "FLUSH QUERY CACHE" periodically to defragment the query cache memory
If you have many small queries lower 'query_cache_min_res_unit' to reduce fragmentation.
MySQL won't cache query results that are larger than query_cache_limit in size
SORT OPERATIONS
Current sort_buffer_size = 8 M
Current read_rnd_buffer_size = 16 M
Sort buffer seems to be fine
JOINS
Current join_buffer_size = 8.00 M
You have had 6096 queries where a join could not use an index properly
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 = 8192 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 = 2048 tables
Current table_definition_cache = 400 tables
You have a total of 1168 tables
You have 1902 open tables.
The table_cache value seems to be fine
You should probably increase your table_definition_cache value.
TEMP TABLES
Current max_heap_table_size = 64 M
Current tmp_table_size = 64 M
Of 74432 temp tables, 10% were created on disk
Created disk tmp tables ratio seems fine
TABLE SCANS
Current read_buffer_size = 2 M
Current table scan ratio = 422 : 1
read_buffer_size seems to be fine
TABLE LOCKING
Current Lock Wait ratio = 1 : 5885
Your table locking seems to be fine
- opencode.co.kr -


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