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Feature #14030

open

GUI setting/tunable for ZFS ARC Maximum size

Added by Patch Public almost 2 years ago. Updated almost 2 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
Web Interface
Target version:
-
Start date:
Due date:
% Done:

0%

Estimated time:
Plus Target Version:
Release Notes:
Default

Description

The default settings for ARC in FreeBSD are appropriate to optimise disk access for most computer systems.
For a real time system such as pfsense which is not typically disk speed limited, the default settings and progressive wired memory use by ARC is not optimal for most pfsense installations.
As zfs is now the default file system for pfsense, expecting most users to debug their high memory use and explicitly code a solution is less than ideal.

Adding a GUI interface to at least vfs.zfs.arc.max and setting it to a default appropriate for pfsense would be a valuable enhancement.
This could be done by
  • Adding an entry in System -> Advanced -> System Tunables
  • Adding a section near "Ram Disk" in System -> Advanced -> Miscellaneous
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 #1

Updated by Jim Pingle almost 2 years ago

  • Subject changed from zfs settings GUI interface to GUI setting/tunable for ZFS ARC Maximum size

Let's keep this issue specific to one request and not over-generalize it.

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