My Oracle Support Banner

Excessive activity to /proc can have negative performance impact on system. (Doc ID 2415172.1)

Last updated on JULY 07, 2023

Applies to:

Solaris Operating System - Version 10 1/13 U11 to 11.3 [Release 10.0 to 11.0]
Information in this document applies to any platform.


Massive amount of accesses to /proc can lead to significant performance impact on the Solaris OS.

If the customer has a large number of processes accessing /proc at the same time, it can  have a noticeable performance impact on the system. This impact will manifest itself in many ways, some are

1) Unable to login to the system
2) Processes taking a long time to be created or exit.
3) Slow down in overall performance of the system.
4) Extreme slowness in various process monitoring commands (ps, prstat etc).
5) Lockstats taking a long time to start.


To view full details, sign in with your My Oracle Support account.

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

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.