tuning-primer

        -- MYSQL PERFORMANCE TUNING PRIMER --
             - By: Matthew Montgomery -

MySQL Version 5.1.63-0+squeeze1-log x86_64

Uptime = 0 days 7 hrs 7 min 22 sec
Avg. qps = 132
Total Questions = 3386852
Threads Connected = 165

Warning: Server has not been running for at least 48hrs.
It may not be safe to use these recommendations

To find out more information on how each of these
runtime variables effects performance visit:
http://dev.mysql.com/doc/refman/5.1/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 = 0.100000 sec.
You have 63331 out of 3386879 that take longer than 0.100000 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/5.1/en/point-in-time-recovery.html

WORKER THREADS
Current thread_cache_size = 612
Current threads_cached = 290
Current threads_per_sec = 0
Historic threads_per_sec = 0
Your thread_cache_size is fine

MAX CONNECTIONS
Current max_connections = 1500
Current threads_connected = 164
Historic max_used_connections = 454
The number of used connections is 30% of the configured maximum.
Your max_connections variable seems to be fine.

INNODB STATUS
Current InnoDB index space = 6.71 G
Current InnoDB data space = 12.32 G
Current InnoDB buffer pool free = 19 %
Current innodb_buffer_pool_size = 12.79 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 : 15.15 G
Configured Max Per-thread Buffers : 7.69 G
Configured Max Global Buffers : 12.83 G
Configured Max Memory Limit : 20.52 G
Physical Memory : 15.59 G

Max memory limit exceeds 90% of physical memory

KEY BUFFER
Current MyISAM index space = 18 M
Current key_buffer_size = 20 M
Key cache miss rate is 1 : 667
Key buffer free ratio = 71 %
Your key_buffer_size seems to be fine

QUERY CACHE
Query cache is supported but not enabled
Perhaps you should set the query_cache_size

SORT OPERATIONS
Current sort_buffer_size = 2 M
Current read_rnd_buffer_size = 1 M
Sort buffer seems to be fine

JOINS
Current join_buffer_size = 1.00 M
You have had 0 queries where a join could not use an index properly
Your joins seem to be using indexes properly

OPEN FILES LIMIT
Current open_files_limit = 61510 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 = 30000 tables
Current table_definition_cache = 256 tables
You have a total of 209 tables
You have 295 open tables.
The table_cache value seems to be fine

TEMP TABLES
Current max_heap_table_size = 16 M
Current tmp_table_size = 16 M
Of 16790 temp tables, 0% were created on disk
Created disk tmp tables ratio seems fine

TABLE SCANS
Current read_buffer_size = 1 M
Current table scan ratio = 4 : 1
read_buffer_size seems to be fine

TABLE LOCKING
Current Lock Wait ratio = 1 : 5115
Your table locking seems to be fine