D1184.id3035.diff
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	diff --git a/roles/core/sysctl/files/sysctl.conf b/roles/core/sysctl/files/sysctl.conf
	--- a/roles/core/sysctl/files/sysctl.conf
	+++ b/roles/core/sysctl/files/sysctl.conf
	@@ -20,3 +20,16 @@

	# Allow user to mount disks (required by FUSE or PEFS)
	vfs.usermount=1
	+
	+{% if use_zfs %}
	+
	+{% if mem < 4096 %}
	+# Maximum size of the Adaptive Replacement Cache (ARC).
	+vfs.zfs.arc_max = 2147483648
	+{% endif %}
	+
	+# Keep prefetch: this works by reading larger blocks than were requested
	+# into the ARC in hopes that the data will be needed soon.
	+vfs.zfs.prefetch_disable=0
	+
	+{% endif %}
	diff --git a/roles/core/sysctl/init.sls b/roles/core/sysctl/init.sls
	--- a/roles/core/sysctl/init.sls
	+++ b/roles/core/sysctl/init.sls
	@@ -9,8 +9,14 @@

	{% if grains['os'] == 'FreeBSD' %}

	+{% set use_zfs = salt['node.has']('zfs:pool') %}
	+
	/etc/sysctl.conf:
	file.managed:
	- source: salt://roles/core/sysctl/files/sysctl.conf
	+ - template: jinja
	+ - context:
	+ use_zfs: {{ use_zfs }}
	+ mem: {{ grains['mem_total'] }}

	{% endif %}