Cpu usage statistics are misleading before Oracle Solaris[TM] 10 Operating System (Doc ID 1009871.1)

Last updated on JULY 29, 2016

Applies to:

Solaris Operating System - Version 8.0 to 9 9/05 U8 [Release 8.0 to 9.0]
All Platforms
Checked for relevance on 23-09-2013

Symptoms

For versions of Solaris[TM] prior to 10 the calculation of the cpu usage statistics as displayed in the user/system/idle columns of vmstat are calculated in a very simplistic manner.

This makes it possible for certain workloads to make vmstat produce highly inaccurate outputs for these columns.

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms