tuning-primer.sh mysql tuning scripti - mysql performans raporu

[iyinet]

ENVER´isimli üyeden Alıntı

Merhaba,

Makina bilgisi



çıktıda fazla uyarı var anlamadım memcached ve eaclator kurulu.

Buyrun:

thread_cache_size = 384
key_buffer = 512M
table_cache = 5000
low_priority_updates = 1

[iyinet]

WoLeRiNe´isimli üyeden Alıntı

Dual Xeon 2.4
4 GB ECC Ram



Şimdiden teşekkür ederim.

buyrun:

thread_cache_size = 384
max_connections = 500
query_cache_size = 64M
query_cache_limit = 4M
table_cache = 5000
low_priority_updates = 1

[ENVER]

iyinet´isimli üyeden Alıntı

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.

[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.

[iyinet]

ENVER´isimli üyeden Alıntı

İyinet teşekkürler son değerleri girdikten sonra yine çalıştırdım. Çeşitli uyarılar mevcut yardımcı olursan sevinirim.

Herşey güzel ama key_buffer = 512M bunu atlamışşın, halen 128M görünüyor.

[ENVER]

iyinet´isimli üyeden Alıntı

Herşey güzel ama key_buffer = 512M bunu atlamışşın, halen 128M görünüyor.

2 tane key_buffer değeri varmış acaba bi aksilik mi var my.cnf içeriğine bakmanız mümkün mü acaba

[mysqld]
safe-show-database
#old_passwords
back_log = 75
skip-innodb
max_connections = 500
key_buffer = 512M
myisam_sort_buffer_size = 64M
join_buffer_size = 2M
read_buffer_size = 2M
sort_buffer_size = 4M
table_cache = 5000
thread_cache_size = 384
wait_timeout = 30
connect_timeout = 10
tmp_table_size = 128M
max_heap_table_size = 128M
max_allowed_packet = 64M
net_buffer_length = 16384
max_connect_errors = 10
thread_concurrency = 8
read_rnd_buffer_size = 786432
bulk_insert_buffer_size = 8M
query_cache_limit = 8M
query_cache_size = 128M
query_cache_type = 1
query_prealloc_size = 262144
query_alloc_block_size = 65536
transaction_alloc_block_size = 8192
transaction_prealloc_size = 4096
default-storage-engine = MyISAM
low_priority_updates = 1

[mysqld_safe]
nice = -10
open_files_limit = 8192

[mysqldump]
quick
max_allowed_packet = 16M

[myisamchk]
key_buffer = 512M
sort_buffer = 64M
read_buffer = 16M
write_buffer = 16M

[mysqlhotcopy]
interactive-timeout

[iyinet]

ENVER´isimli üyeden Alıntı

2 tane key_buffer değeri varmış acaba bi aksilik mi var my.cnf içeriğine bakmanız mümkün mü acaba

[mysqld]
safe-show-database
#old_passwords
back_log = 75
skip-innodb
max_connections = 500
key_buffer = 512M
myisam_sort_buffer_size = 64M
join_buffer_size = 2M
read_buffer_size = 2M
sort_buffer_size = 4M
table_cache = 5000
thread_cache_size = 384
wait_timeout = 30
connect_timeout = 10
tmp_table_size = 128M
max_heap_table_size = 128M
max_allowed_packet = 64M
net_buffer_length = 16384
max_connect_errors = 10
thread_concurrency = 8
read_rnd_buffer_size = 786432
bulk_insert_buffer_size = 8M
query_cache_limit = 8M
query_cache_size = 128M
query_cache_type = 1
query_prealloc_size = 262144
query_alloc_block_size = 65536
transaction_alloc_block_size = 8192
transaction_prealloc_size = 4096
default-storage-engine = MyISAM
low_priority_updates = 1

[mysqld_safe]
nice = -10
open_files_limit = 8192

[mysqldump]
quick
max_allowed_packet = 16M

[myisamchk]
key_buffer = 512M
sort_buffer = 64M
read_buffer = 16M
write_buffer = 16M

[mysqlhotcopy]
interactive-timeout

Benim verdiğim tüm değerler sadece [mysqld] bölümü içindir.
[mysqld] bölümü altında 1 tane key_buffer var o da 512M, 128M nereden geliyor acaba?

[ENVER]

ilk veriyi girdiğimde alttaki kısmı düzeltmişim

[myisamchk]
key_buffer = 512M
sort_buffer = 64M
read_buffer = 16M
write_buffer = 16M

mysqld kısmını yeni 512 yaptım

[iyinet]

ENVER´isimli üyeden Alıntı

ilk veriyi girdiğimde alttaki kısmı düzeltmişim


mysqld kısmını yeni 512 yaptım

Bu durumda 2 gün sonra tekrar bakarız, şimdilik key_buffer haricinde herşey iyi görünüyor.

[WoLeRiNe]

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

MySQL Version 5.0.45-community-log i686

Uptime = 2 days 5 hrs 8 min 39 sec
Avg. qps = 111
Total Questions = 21319801
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/5.0/...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 = 3 sec.
You have 555 out of 21319859 that take longer than 3 sec. to complete
The slow query log is enabled.
Your long_query_time seems to be fine

WORKER THREADS
Current thread_cache_size = 384
Current threads_cached = 43
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 = 1
Historic max_used_connections = 44
The number of used connections is 8% 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

MEMORY USAGE
Max Memory Ever Allocated : 385 M
Configured Max Per-thread Buffers : 2 G
Configured Max Global Buffers : 202 M
Configured Max Memory Limit : 2 G
Physical Memory : 3.90 G
Max memory limit seem to be within acceptable norms

KEY BUFFER
Current MyISAM index space = 846 M
Current key_buffer_size = 128 M
Key cache miss rate is 1 : 4071
Key buffer fill ratio = 99.00 %
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 = 64 M
Current query_cache_used = 51 M
Current query_cache_limit = 4 M
Current Query cache Memory fill ratio = 81.08 %
Current query_cache_min_res_unit = 4 K
Query Cache is 11 % 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.
However, 230763 queries have been removed from the query cache due to lack of memory
Perhaps you should raise query_cache_size
MySQL won't cache query results that are larger than query_cache_limit in size

SORT OPERATIONS
Current sort_buffer_size = 1 M
Current record/read_rnd_buffer_size = 1020 K
Sort buffer seems to be fine

JOINS
Current join_buffer_size = 1.00 M
You have had 2465 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 = 20510 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 = 10000 tables
You have a total of 4093 tables
You have 8084 open tables.
The table_cache value seems to be fine

TEMP TABLES
Current max_heap_table_size = 16 M
Current tmp_table_size = 32 M
Of 1026975 temp tables, 4% 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 = 1020 K
Current table scan ratio = 4 : 1
read_buffer_size seems to be fine

TABLE LOCKING
Current Lock Wait ratio = 1 : 1915
You may benefit from selective use of InnoDB.
If you have a high concurrency of inserts on Dynamic row-length tables
consider setting 'concurrent_insert=2'.

Yeni durum bu. Yorumlarsanız sevinirim. Teşekkürler.

[iyinet]

WoLeRiNe´isimli üyeden Alıntı

Yeni durum bu. Yorumlarsanız sevinirim. Teşekkürler.

Herşey gayet güzel görünüyor.
max connection ı biraz azaltıp oradan kazandığımız belleği key buffer a verebiliriz.

Bu şekilde değiştirebilirsin.

max_connections = 200
key_buffer = 256M