Linux Cpanel Centos 5.5 mysql tuning scripti ile mysql my.cnf ayarı

merhabalar arkadaşlar yardıma ihtiyacım var bol hitli bir arkadaşlık sistemim var 2 gb vps 'in daily log dan baktığımda %45 ram tüketimi yapıyor ve cpu load 4.15 lerde filan ara ara donmalar ping düşmeleri vs yaşamaktayım

yardımlarınızı bekliyorum

Vps 2 gb ram lidir
Q9400 işlemcili
Vmware7.0.1


MYSQL Tuning Raporu aşağıdadır
yardımcı olcak arkadaşlara şimdiden teşekkür ederim

not : bu arada my.cnf ye nasıl gireceğim onuda kodsal ssh den anlatırsanız sevinirim

tşkler

MAX CONNECTIONS
Current max_connections = 750
Current threads_connected = 6
Historic max_used_connections = 54
The number of used connections is 7% of the configured maximum.
You are using less than 10% of your configured max_connections.
Lowering max_connections could help to avoid an over-allocation of memory
See "MEMORY USAGE" section to make sure you are not over-allocating

No InnoDB Support Enabled!

MEMORY USAGE
Max Memory Ever Allocated : 494 M
Configured Max Per-thread Buffers : 4.53 G
Configured Max Global Buffers : 160 M
Configured Max Memory Limit : 4.68 G
Physical Memory : 1.97 G

nMax memory limit exceeds 90% of physical memory

KEY BUFFER
Current MyISAM index space = 34 M
Current key_buffer_size = 128 M
Key cache miss rate is 1 : 5884
Key buffer free ratio = 86 %
Your key_buffer_size seems to be fine

QUERY CACHE
Query cache is enabled
Current query_cache_size = 32 M
Current query_cache_used = 23 M
Current query_cache_limit = 4 M
Current Query cache Memory fill ratio = 73.42 %
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 = 1 M
Sort buffer seems to be fine

JOINS
Current join_buffer_size = 1.00 M
You have had 535 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 = 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 = 2000 tables
Current table_definition_cache = 256 tables
You have a total of 3937 tables
You have 2000 open tables.
Current table_cache hit rate is 4%
, 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 = 16 M
Current tmp_table_size = 16 M
Of 141507 temp tables, 45% 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 = 2 M
Current table scan ratio = 212 : 1
read_buffer_size seems to be fine

TABLE LOCKING
Current Lock Wait ratio = 1 : 353
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=2'.

root@server [~]# ./tuning-primer.sh

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

MySQL Version 5.1.48 i686

Uptime = 2 days 2 hrs 10 min 16 sec
Avg. qps = 84
Total Questions = 15304144
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/5.1/...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 168 out of 15304165 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/5.1/...-recovery.html

WORKER THREADS
Current thread_cache_size = 128
Current threads_cached = 53
Current threads_per_sec = 0
Historic threads_per_sec = 0
Your thread_cache_size is fine

MAX CONNECTIONS
Current max_connections = 750
Current threads_connected = 1
Historic max_used_connections = 54
The number of used connections is 7% of the configured maximum.
You are using less than 10% of your configured max_connections.
Lowering max_connections could help to avoid an over-allocation of memory
See "MEMORY USAGE" section to make sure you are not over-allocating

No InnoDB Support Enabled!

MEMORY USAGE
Max Memory Ever Allocated : 494 M
Configured Max Per-thread Buffers : 4.53 G
Configured Max Global Buffers : 160 M
Configured Max Memory Limit : 4.68 G
Physical Memory : 1.97 G

nMax memory limit exceeds 90% of physical memory

KEY BUFFER
Current MyISAM index space = 34 M
Current key_buffer_size = 128 M
Key cache miss rate is 1 : 5850
Key buffer free ratio = 87 %
Your key_buffer_size seems to be fine

QUERY CACHE
Query cache is enabled
Current query_cache_size = 32 M
Current query_cache_used = 23 M
Current query_cache_limit = 4 M
Current Query cache Memory fill ratio = 72.93 %
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 = 1 M
Sort buffer seems to be fine

JOINS
Current join_buffer_size = 1.00 M
You have had 541 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 = 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 = 2000 tables
Current table_definition_cache = 256 tables
You have a total of 3937 tables
You have 2000 open tables.
Current table_cache hit rate is 3%
, 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 = 16 M
Current tmp_table_size = 16 M
Of 141892 temp tables, 45% 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 = 2 M
Current table scan ratio = 212 : 1
read_buffer_size seems to be fine

TABLE LOCKING
Current Lock Wait ratio = 1 : 353
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=2'.

root@server [~]#

Aşağıdaki ayarları linux de my.cnf (/etc/my.cnf) dosyasında [mysqld] bölümü altına ekleyin, eğer eklediğiniz ayar zaten varsa değiştirin. Aynı ayarın tekrar etmemesine dikkat edin.

İşlemlere başlamadan önce my.cnf dosyanızın bir yedeğini almayı unutmayın!

Ayarlarınızı optimize etmek için zaman zaman mysql performans raporu almayı unutmayın.

Aşağıdaki ayarların devreye girebilmesi için ayarları tamamalyıp my.nf dosyanızı kaydetmenizin ardından service mysql restart yada service mysqld restart komutunu çalıştırınız.

256Mb-512M arasında belleğe sahip serverlar (VPS ler) için:

512Mb-2Gb arasında belleğe sahip serverlar için:

2Gb-4Gb arasında belleğe sahip serverlar için:

4Gb+ belleğe sahip serverlar için:

İyi Forumlar..

tşk ederim fakat bu ayarlar 1mysql e göre ayarlanmış sanırım
oysa ki 70 adet site var vps de
bu ayarlar sanırım benim sisteme göre değil
yani tek bir web sitesi yok
tşkler yinede