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  #43 (permalink)   iTrader 
Alt 2007-12-17, 22:47
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Alıntı:
iyinet´isimli üyeden Alıntı Mesajı göster
Buyrun:

thread_cache_size = 384
key_buffer = 512M
table_cache = 5000
low_priority_updates = 1
İyinet teşekkürler son değerleri girdikten sonra yine çalıştırdım. Çeşitli uyarılar mevcut yardımcı olursan sevinirim.

Alıntı:
[root@sunucu ~]# ./tuning-primer.sh

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

MySQL Version 4.1.22-standard i686

Uptime = 2 days 0 hrs 46 min 40 sec
Avg. qps = 95
Total Questions = 16692415
Threads Connected = 5

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/4.1/...variables.html
Visit http://www.mysql.com/products/enterprise/advisors.html
for info about MySQL's Enterprise Monitoring and Advisory Service

SLOW QUERIES
Current long_query_time = 10 sec.
You have 50 out of 16692429 that take longer than 10 sec. to complete
The slow query log is NOT enabled.
Your long_query_time may be too high, I typically set this under 5 sec.

WORKER THREADS
Current thread_cache_size = 384
Current threads_cached = 157
Current threads_per_sec = 0
Historic threads_per_sec = 0
Your thread_cache_size is fine

MAX CONNECTIONS
Current max_connections = 500
Current threads_connected = 2
Historic max_used_connections = 159
The number of used connections is 31% of the configured maximum.
Your max_connections variable seems to be fine.

MEMORY USAGE
Max Memory Ever Allocated : 1 G
Configured Max Per-thread Buffers : 4 G
Configured Max Global Buffers : 266 M
Configured Max Memory Limit : 4 G
Physical Memory : 3.95 G

Max memory limit exceeds 90% of physical memory


KEY BUFFER
Current MyISAM index space = 573 M
Current key_buffer_size = 128 M
Key cache miss rate is 1 : 42162
Key buffer fill ratio = 100.00 %
You could increase key_buffer_size
It is safe to raise this up to 1/4 of total system memory;
assuming this is a dedicated database server.

QUERY CACHE
Query cache is enabled
Current query_cache_size = 128 M
Current query_cache_used = 67 M
Current query_cache_limit = 8 M
Current Query cache Memory fill ratio = 52.50 %
Current query_cache_min_res_unit = 4 K
Query Cache is 24 % 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 = 4 M
Current record/read_rnd_buffer_size = 764 K
Sort buffer seems to be fine

JOINS
Current join_buffer_size = 2.00 M
You have had 1310 queries where a join could not use an index properly
You should enable "log-queries-not-using-indexes"
Then look for non indexed joins in the slow query log.
If you are unable to optimize your queries you may want to increase your
join_buffer_size to accommodate larger joins in one pass.

Note! This script will still suggest raising the join_buffer_size when
ANY joins not using indexes are found.

OPEN FILES LIMIT
Current open_files_limit = 10510 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_cache value = 5000 tables
You have a total of 1044 tables
You have 1315 open tables.
The table_cache value seems to be fine

TEMP TABLES
Current max_heap_table_size = 127 M
Current tmp_table_size = 128 M
Of 530867 temp tables, 0% were created on disk
Effective in-memory tmp_table_size is limited to max_heap_table_size.
Created disk tmp tables ratio seems fine

TABLE SCANS
Current read_buffer_size = 1 M
Current table scan ratio = 760 : 1
read_buffer_size seems to be fine

TABLE LOCKING
Current Lock Wait ratio = 1 : 501
You may benefit from selective use of InnoDB.
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