pjd 648f58f532 Try to stabilize ZFS with regard to memory consumption: ... - Allow to shrink ARC down to 16MB (instead of 64MB). - Set arc_max to 1/2 of kmem_map by default. - Start freeing things earlier when low memory situation is detected. - Serialize execution of arc_lowmem(). I decided to setup minimum ZFS memory requirements to 512MB of RAM and 256MB of kmem_map size. If there is less RAM or kmem_map, a warning will be printed. World is cruel, be no better. In other words: modern file system requires modern hardware:) From ZFS administration guide: "Currently the minimum amount of memory recommended to install a Solaris system is 512 Mbytes. However, for good ZFS performance, at least one Gbyte or more of memory is recommended."		2007-04-10 02:35:57 +00:00
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freebsd32	Regen.	2006-12-20 19:39:10 +00:00
ia32	Move some declaration of 32-bit signal structures into file	2006-10-05 01:56:11 +00:00
linprocfs	Fix kernel module dependency. linprocfs depends on sysvmsg and sysvsem.	2007-04-06 18:15:56 +00:00
linsysfs	Add a pn_destroy field to pfs_node. This field points to a destructor	2007-03-12 12:16:52 +00:00
linux	Add the CAM 'SG' peripheral device. This device implements a subset of the	2007-04-07 19:40:58 +00:00
ndis	We have strcasecmp() in libkern now.	2007-04-06 11:18:57 +00:00
netbsd	Start each of the license/copyright comments with /*-	2005-01-05 22:34:37 +00:00
opensolaris	Try to stabilize ZFS with regard to memory consumption:	2007-04-10 02:35:57 +00:00
pecoff	remove dead code	2005-02-22 01:26:48 +00:00
svr4	Replace custom file descriptor array sleep lock constructed using a mutex	2007-04-04 09:11:34 +00:00