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Mark Johnston d307bdcc2c Further constrain the use of per-CPU caches for free pages. 
In low memory conditions a significant number of pages may end up stuck
in the caches, and currently these caches cannot be reaped, leading to
spurious memory allocation failures and OOM kills.  So:

- Take into account the fact that we may cache up to two full buckets
  of pages per CPU, not just one.
- Increase the amount of RAM required per CPU to enable the caches.

This is a temporary measure until the page cache management policy is
improved.

PR:		241048
Reported and tested by:	Kevin Oberman <rkoberman@gmail.com>
Reviewed by:	alc, kib
Discussed with:	jeff
MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D22040
2019-10-18 17:36:42 +00:00
..
_vm_radix.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
default_pager.c
SPDX: wrong license.
2017-11-30 15:45:42 +00:00
device_pager.c
(4/6) Protect page valid with the busy lock.
2019-10-15 03:45:41 +00:00
memguard.c
Add a vm_page_wired() predicate.
2019-06-02 01:00:17 +00:00
memguard.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
phys_pager.c
(4/6) Protect page valid with the busy lock.
2019-10-15 03:45:41 +00:00
pmap.h
Remove page locking from pmap_mincore().
2019-10-16 22:03:27 +00:00
redzone.c
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
redzone.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
sg_pager.c
(4/6) Protect page valid with the busy lock.
2019-10-15 03:45:41 +00:00
swap_pager.c
swapon_check_swzone(): use already calculated static variables.
2019-10-17 13:49:47 +00:00
swap_pager.h
sys: further adoption of SPDX licensing ID tags.
2017-11-20 19:43:44 +00:00
uma_core.c
Fix braino in r353429
2019-10-11 06:02:03 +00:00
uma_dbg.c
Fix compilation failures on different arches that have vm_machdep.c not
2019-01-15 19:33:47 +00:00
uma_dbg.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
uma_int.h
Extend uma_reclaim() to permit different reclamation targets.
2019-09-01 22:22:43 +00:00
uma.h
vfs: manage mnt_ref with atomics
2019-09-16 21:31:02 +00:00
vm_domainset.c
Add a !NUMA definition for vm_domainset_iter_policy_ref_init().
2018-10-24 17:09:20 +00:00
vm_domainset.h
Refactor domainset iterators for use by malloc(9) and UMA.
2018-10-23 16:35:58 +00:00
vm_extern.h
Improve MD page fault handlers.
2019-09-27 18:43:36 +00:00
vm_fault.c
(5/6) Move the VPO_NOSYNC to PGA_NOSYNC to eliminate the dependency on the
2019-10-15 03:48:22 +00:00
vm_glue.c
sys/vm/vm_glue.c: Incorrect function name in panic string
2019-09-19 07:28:24 +00:00
vm_init.c
Do not reserve KVA for paging bufs in vm_ksubmap_init(), since now
2019-01-16 20:14:16 +00:00
vm_kern.c
Apply mapping protections to preloaded kernel modules on amd64.
2019-10-18 13:56:45 +00:00
vm_kern.h
Do not reserve KVA for paging bufs in vm_ksubmap_init(), since now
2019-01-16 20:14:16 +00:00
vm_map.c
(4/6) Protect page valid with the busy lock.
2019-10-15 03:45:41 +00:00
vm_map.h
Define macro VM_MAP_ENTRY_FOREACH for enumerating the entries in a vm_map.
2019-10-08 07:14:21 +00:00
vm_meter.c
Provide separate accounting for user-wired pages.
2019-05-13 16:38:48 +00:00
vm_mmap.c
Remove page locking from pmap_mincore().
2019-10-16 22:03:27 +00:00
vm_object.c
(5/6) Move the VPO_NOSYNC to PGA_NOSYNC to eliminate the dependency on the
2019-10-15 03:48:22 +00:00
vm_object.h
(5/6) Move the VPO_NOSYNC to PGA_NOSYNC to eliminate the dependency on the
2019-10-15 03:48:22 +00:00
vm_page.c
Further constrain the use of per-CPU caches for free pages.
2019-10-18 17:36:42 +00:00
vm_page.h
Remove page locking from pmap_mincore().
2019-10-16 22:03:27 +00:00
vm_pageout.c
(4/6) Protect page valid with the busy lock.
2019-10-15 03:45:41 +00:00
vm_pageout.h
Fix OOM handling of some corner cases.
2019-08-16 09:43:49 +00:00
vm_pagequeue.h
Revert r352406, which contained changes I didn't intend to commit.
2019-09-16 15:04:45 +00:00
vm_pager.c
Do not reserve KVA for paging bufs in vm_ksubmap_init(), since now
2019-01-16 20:14:16 +00:00
vm_pager.h
vm pager: writemapping accounting for OBJT_SWAP
2019-09-03 20:31:48 +00:00
vm_param.h
Improve MD page fault handlers.
2019-09-27 18:43:36 +00:00
vm_phys.c
Remove unnecessary debugging from r351181 that caused powerpc build to fail.
2019-08-18 08:07:31 +00:00
vm_phys.h
Encapsulate phys_avail manipulation in a set of simple routines. Add a
2019-08-18 07:06:31 +00:00
vm_radix.c
vm: stop passing M_ZERO when allocating radix nodes
2018-06-24 13:08:05 +00:00
vm_radix.h
sys: general adoption of SPDX licensing ID tags.
2017-11-27 15:23:17 +00:00
vm_reserv.c
Allocate amd64's page array using pages and page directory pages from the
2019-08-18 23:07:56 +00:00
vm_reserv.h
Allocate amd64's page array using pages and page directory pages from the
2019-08-18 23:07:56 +00:00
vm_swapout_dummy.c
SPDX: Consider code from Carnegie-Mellon University.
2017-11-30 15:48:35 +00:00
vm_swapout.c
(4/6) Protect page valid with the busy lock.
2019-10-15 03:45:41 +00:00
vm_unix.c
Provide separate accounting for user-wired pages.
2019-05-13 16:38:48 +00:00
vm.h
Move vm_ndomains to vm.h where it can be used with a single header include
2018-03-27 03:27:02 +00:00
vnode_pager.c
(4/6) Protect page valid with the busy lock.
2019-10-15 03:45:41 +00:00
vnode_pager.h
vm pager: writemapping accounting for OBJT_SWAP
2019-09-03 20:31:48 +00:00