ZFS Performance Degrades With Threads Held Up By kcage_create_throttle()
(Doc ID 1528282.1)
Last updated on JANUARY 30, 2022
Applies to:Solaris Operating System - Version 10 6/06 U2 to 11.0 [Release 10.0 to 11.0]
Information in this document applies to any platform.
ZFS IO performance can occasionally degrade severely.
If this issue is encountered then a threadlist taken from the system when performance is degraded will show several threads with a stack similar to the following:
The fingerprint is that the stack contains kcage_create_throttle(), and kmem_cache_alloc() is called from ZFS related functions.
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