Project

General

Profile

Feature #11765

dynamic ARC tuning

Added by Mike Gerdts 14 days ago. Updated 14 days ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
zfs - Zettabyte File System
Start date:
Due date:
% Done:

0%

Estimated time:
Difficulty:
Medium
Tags:

Description

zfsonlinux has the ability to dynamically tune ARC variables. Having this capability in illumos would be very helpful to SmartOS and OmniOS to be able to get the ARC out of the way of bhyve instances, which require guest memory to be resident. See https://smartos.org/bugview/OS-8005.

History

#1

Updated by Mike Gerdts 14 days ago

arc_tuning_update was added as part of the port of #5376 to zfsonlinux. That port was far from straight-forward: the diffs in illumos and zol are quite different.

https://github.com/zfsonlinux/zfs/commit/ca67b33abadd2893755735130c11faa5df756989

NB: zol arc_shrink is illumos arc_reduce_target_size

Also available in: Atom PDF