Steven Hartland 4d19f4ad1f Refactor ZFS ARC reclaim logic to be more VM cooperative ... Prior to this change we triggered ARC reclaim when kmem usage passed 3/4 of the total available, as indicated by vmem_size(kmem_arena, VMEM_ALLOC). This could lead large amounts of unused RAM e.g. on a 192GB machine with ARC the only major RAM consumer, 40GB of RAM would remain unused. The old method has also been seen to result in extreme RAM usage under certain loads, causing poor performance and stalls. We now trigger ARC reclaim when the number of free pages drops below the value defined by the new sysctl vfs.zfs.arc_free_target, which defaults to the value of vm.v_free_target. Credit to Karl Denninger for the original patch on which this update was based. PR: 191510 and 187594 Tested by: dteske MFC after: 1 week Relnotes: yes Sponsored by: Multiplay		2014-08-28 19:50:08 +00:00
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_vm_radix.h	On all the architectures, avoid to preallocate the physical memory	2013-08-09 11:28:55 +00:00
default_pager.c	Switch the vm_object mutex to be a rwlock. This will enable in the	2013-03-09 02:32:23 +00:00
device_pager.c	Initialize paddr to handle the case of zero size.	2014-03-12 16:38:55 +00:00
memguard.c	Pull in r267961 and r267973 again. Fix for issues reported will follow.	2014-06-28 03:56:17 +00:00
memguard.h	Replace kernel virtual address space allocation with vmem. This provides	2013-08-07 06:21:20 +00:00
phys_pager.c	The soft and hard busy mechanism rely on the vm object lock to work.	2013-08-09 11:11:11 +00:00
pmap.h	Change pmap_enter(9) interface to take flags parameter and superpage	2014-08-08 17:12:03 +00:00
redzone.c	Pull in r267961 and r267973 again. Fix for issues reported will follow.	2014-06-28 03:56:17 +00:00
redzone.h
sg_pager.c	Different consumers of the struct vm_page abuse pageq member to keep	2013-08-10 17:36:42 +00:00
swap_pager.c	Add sysctl OIDs showing the actual size and capacity of the swap zone.	2014-04-26 12:18:17 +00:00
swap_pager.h	Do not map the swap i/o pbufs if the geom provider for the swap	2013-03-19 14:39:27 +00:00
uma.h	Create two public UMA_ZONE_PCPU zones: 64 bit sized and pointer sized.	2014-02-10 19:59:46 +00:00
uma_core.c	Pull in r267961 and r267973 again. Fix for issues reported will follow.	2014-06-28 03:56:17 +00:00
uma_dbg.c	- Add a per-zone lock for zones without kegs.	2013-06-20 19:08:12 +00:00
uma_dbg.h
uma_int.h	Implement soft pressure on UMA cache bucket sizes.	2013-11-19 10:05:53 +00:00
vm.h	rename scheduler->swapper and SI_SUB_RUN_SCHEDULER->SI_SUB_LAST	2013-07-24 09:45:31 +00:00
vm_extern.h	Handle wiring failures in vm_map_wire() with the new functions	2014-08-02 16:10:24 +00:00
vm_fault.c	Relax one of the conditions for mapping a page on the fast path.	2014-08-23 05:24:31 +00:00
vm_glue.c	If vm_page_grab() allocates a new page, the page is not inserted into	2014-08-13 05:44:08 +00:00
vm_init.c	Pull in r267961 and r267973 again. Fix for issues reported will follow.	2014-06-28 03:56:17 +00:00
vm_kern.c	Change pmap_enter(9) interface to take flags parameter and superpage	2014-08-08 17:12:03 +00:00
vm_kern.h	- Add a statically allocated memguard arena since it is needed very early	2013-08-13 22:40:43 +00:00
vm_map.c	Rewrite a loop in vm_map_wire() so that gcc doesn't think that the variable	2014-08-02 17:58:20 +00:00
vm_map.h	Add MAP_EXCL flag for mmap(2). It should be combined with MAP_FIXED,	2014-06-19 05:00:39 +00:00
vm_meter.c	Rename global cnt to vm_cnt to avoid shadowing.	2014-03-22 10:26:09 +00:00
vm_mmap.c	Remove ia64.	2014-07-07 00:27:09 +00:00
vm_object.c	When unwiring a region of an address space, do not assume that the	2014-07-26 18:10:18 +00:00
vm_object.h	Add wrappers to assert that vm object is unlocked and for try upgrade.	2014-08-06 19:30:35 +00:00
vm_page.c	Adapt vm_page_aflag_set(PGA_WRITEABLE) to the locking of	2014-08-09 05:00:34 +00:00
vm_page.h	Adapt vm_page_aflag_set(PGA_WRITEABLE) to the locking of	2014-08-09 05:00:34 +00:00
vm_pageout.c	Refactor ZFS ARC reclaim logic to be more VM cooperative	2014-08-28 19:50:08 +00:00
vm_pageout.h	Move what remains of vm/vm_contig.c into vm/vm_pageout.c, where similar	2012-07-18 05:21:34 +00:00
vm_pager.c	- Add a general purpose resource allocator, vmem, from NetBSD. It was	2013-06-28 03:51:20 +00:00
vm_pager.h	The vm_pager_page_unswapped() pager op is only implemented for the	2014-08-06 19:34:03 +00:00
vm_param.h	Rename global cnt to vm_cnt to avoid shadowing.	2014-03-22 10:26:09 +00:00
vm_phys.c	vm_phys: improve robustness of fictitious ranges	2014-08-05 10:29:01 +00:00
vm_phys.h	Rename global cnt to vm_cnt to avoid shadowing.	2014-03-22 10:26:09 +00:00
vm_radix.c	Pull in r267961 and r267973 again. Fix for issues reported will follow.	2014-06-28 03:56:17 +00:00
vm_radix.h	Eliminate a redundant parameter to vm_radix_replace().	2013-12-08 20:07:02 +00:00
vm_reserv.c	Correct a bug in the management of the population map on big-endian	2014-06-11 16:11:12 +00:00
vm_reserv.h	Refactor vm_page_alloc()'s interactions with vm_reserv_alloc_page() and	2013-05-12 16:50:18 +00:00
vm_unix.c	Remove ia64.	2014-07-07 00:27:09 +00:00
vm_zeroidle.c	Pull in r267961 and r267973 again. Fix for issues reported will follow.	2014-06-28 03:56:17 +00:00
vnode_pager.c	Rename global cnt to vm_cnt to avoid shadowing.	2014-03-22 10:26:09 +00:00
vnode_pager.h	Account the writeable shared mappings backed by file in the vnode	2012-02-23 21:07:16 +00:00