Performance problems on LDOM due to locking contention in cnex driver (Doc ID 2204804.1)

Last updated on JUNE 22, 2017

Applies to:

Solaris Operating System - Version 10 11/06 U3 and later
Information in this document applies to any platform.

Symptoms

When vmstat(1) and mpstat(1) show a high CPU sys percentage and mpstat(1) shows a high number of spins on mutexes (column smtx)...

...then the system is hitting a known and fixed issue in the cnex driver.

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