How to check the CPU usage in the database

How to check the CPU usage?

in Linux and database level

Hello

under Linux, you can use mpstat command, for example:

[[email protected] ~] $ mpstat Pei ALL 2 10
Linux 2.6.32 - 300.10.1.el5uek (vSLLGM132) 23.11.2014

14:27:08 CPU user nice sys % iowait % irq % sweet % fly % idle intr/s
14:27:10 all 1.00 8.50 9.00 0.00 0.00 0.50 0.00 1423,50 81.00
14:27:10 0 1.00 8.50 9.00 0.00 0.00 0.50 0.00 81.00 26.50

CPU utilization tracking can be done with the command SAR u.
.

At the database level: data dictionary views: v$ sysstat, v$ iostat, V$ SYSMETRIC_HISTORY.

Read the MOS Notes:

Diagnose hardware base caused by Performance issues (Doc ID 148176.1)

Troubleshooting: The use of high processor (Doc ID 164768.1)

Concerning

Borys

Tags: Database

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