Oracle DB runs slower when system is booted up after a panic.

(Doc ID 2203060.1)

Last updated on NOVEMBER 17, 2016

Applies to:

Solaris Operating System - Version 11.2 to 11.3 [Release 11.0]
Oracle Solaris on SPARC (64-bit)
The issue is just affecting systems that have the feature "Deferred Dumps" available and activated.
Deferred dumps are only available for:

- SPARC : Only available on T5 and later machines (eg T5, Mx-32)
- need Sys Firmware 9.4.x
- older systems revert to traditional dump

Solaris 12 build 61 and above
Solaris 11.3 build 14 and above
Solaris 11.2 SRU 8.4.0 and above

Symptoms

 The DB apps run slower after a panic.

Any command that runs vmu_calculate_seg (like prstat) runs slower.

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