Sysctl - Revision history

Light at 15:55, 27 July 2005

2005-07-27T15:55:44Z

2005-07-27T15:49:02Z

2005-07-27T15:43:46Z

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'''sysctl''' is used to get/set various kernel and kernel module parameters

[[Category:System Commands]]

@@ Line 22: / Line 22: @@
   hw.physmem: 130453504
   hw.usermem: 107544576
 [[Category:System Commands]]

← Older revision		Revision as of 15:49, 27 July 2005
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−	'''sysctl''' is used to get/set various kernel and kernel module parameters	+	'''sysctl''' is used to get/set various kernel and kernel module parameters.

		+	To get the value of a kernel parameter:

		+	[root@splat ~]# '''sysctl hw.physmem'''
		+	hw.physmem: 130453504
		+
		+	To set the value of a kernel parameter:
		+
		+	[root@splat ~]# '''sysctl net.link.ether.bridge=0'''
		+	net.link.ether.bridge: 1 -> 0
		+
		+	Please note that some parameters are read-only and cannot be changed.
		+
		+	You can use the '''-a''' parameter to list all '''sysctl''' variables. Coupled with [[grep]] this makes a great way to find the '''sysctl''' variable you're looking for.
		+
		+	[root@splat ~]# '''sysctl -a \| grep mem'''
		+	vm.zone_kmem_pages: 182
		+	vm.zone_kmem_kvaspace: 14725120
		+	vfs.ufs.dirhash_maxmem: 2097152
		+	vfs.ufs.dirhash_mem: 292312
		+	hw.physmem: 130453504
		+	hw.usermem: 107544576

	[[Category:System Commands]]		[[Category:System Commands]]