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mysqld high cpu utilization on soalris
Posted by: prakash gr
Date: May 15, 2009 04:10AM

Hi,

mysql> show variables like '%version%';
+-------------------------+------------------------------+
| Variable_name | Value |
+-------------------------+------------------------------+
| protocol_version | 10 |
| version | 5.0.77-log |
| version_comment | MySQL Community Server (GPL) |
| version_compile_machine | sparc |
| version_compile_os | sun-solaris2.9 |
+-------------------------+------------------------------+


once i started the php connection to mysql server the below is the top command.



load averages: 7.82, 7.88, 7.44 12:36:51
112 processes: 108 sleeping, 1 zombie, 1 stopped, 2 on cpu
CPU states: 0.0% idle, 97.1% user, 2.9% kernel, 0.0% iowait, 0.0% swap
Memory: 2048M real, 262M free, 1923M swap in use, 3585M swap free

PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND
12850 mysql 30 59 0 0K 0K cpu/1 117:34 98.81% mysqld
372 root 6 59 0 4000K 2464K sleep 51:26 0.09% picld
1619 root 1 59 0 80M 2512K sleep 0:05 0.01% Xsun
643 root 24 59 0 3784K 2448K sleep 0:18 0.00% nscd
723 root 1 59 0 2688K 1256K sleep 0:16 0.00% arraymon
526 root 17 59 0 65M 3584K sleep 0:10 0.00% vxsvc
586 root 1 59 0 2504K 1448K sleep 0:08 0.00% inetd
16 root 1 59 0 9192K 4000K sleep 0:02 0.00% vxconfigd
4344 root 2 49 0 10M 2896K sleep 0:01 0.00% dtsession
4352 root 1 59 0 7520K 2600K sleep 0:01 0.00% sdtperfmeter
1401 root 7 59 0 2624K 1912K sleep 0:01 0.00% mibiisa
1 root 1 59 0 1288K 192K sleep 0:01 0.00% init
13080 oracle 1 59 0 2264K 1336K cpu/0 0:00 0.00% top
10332 oracle 1 60 0 0K 0K stop 0:00 0.00% mysql
5673 root 1 39 10 4400K 1768K sleep 0:00 0.00% dtscreen


what went wrong just 3 or 4 connection making this much high cpu utilization moreever i checked the query and queries are using right index


any inputs greately appreciated.


Thnaks

Prakash GR
surat
gujrat



Edited 3 time(s). Last edit at 05/15/2009 04:34AM by prakash gr.

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