freebsd-dev/sys/vm
Mark Johnston 9f74cdbf78 Mark pages allocated from the per-CPU cache.
Only free pages to the cache when they were allocated from that cache.
This mitigates rapid fragmentation of physical memory seen during
poudriere's dependency calculation phase.  In particular, pages
belonging to broken reservations are no longer freed to the per-CPU
cache, so they get a chance to coalesce with freed pages during the
break.  Otherwise, the optimized CoW handler may create object
chains in which multiple objects contain pages from the same
reservation, and the order in which we do object termination means
that the reservation is broken before all of those pages are freed,
so some of them end up in the per-CPU cache and thus permanently
fragment physical memory.

The flag may also be useful for eliding calls to vm_reserv_free_page(),
thus avoiding memory accesses for data that is likely not present
in the CPU caches.

Reviewed by:	alc
Discussed with:	jeff
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D20763
2019-07-02 19:51:40 +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 Add a return value to vm_page_remove(). 2019-06-26 17:37:51 +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 sys: general adoption of SPDX licensing ID tags. 2017-11-27 15:23:17 +00:00
pmap.h Add pmap_is_valid_memattr(9). 2018-08-01 18:45:51 +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 Change the vm_ooffset_t type to unsigned. 2018-12-02 13:16:46 +00:00
swap_pager.c Simple code refactoring originally in D13484. 2019-06-08 17:49:17 +00:00
swap_pager.h
uma_core.c Replace uses of vm_page_unwire(m, PQ_NONE) with vm_page_unwire_noq(m). 2019-06-07 18:23:29 +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 UMA: unsign some variables related to allocation in hash_alloc(). 2019-02-12 04:33:05 +00:00
uma.h o Move zone limit from keg level up to zone level. This means that now 2019-01-15 00:02:06 +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 Add malloc_domainset(9) and _domainset variants to other allocator KPIs. 2018-10-30 18:26:34 +00:00
vm_fault.c Add a return value to vm_page_remove(). 2019-06-26 17:37:51 +00:00
vm_glue.c Replace uses of vm_page_unwire(m, PQ_NONE) with vm_page_unwire_noq(m). 2019-06-07 18:23:29 +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 Replace uses of vm_page_unwire(m, PQ_NONE) with vm_page_unwire_noq(m). 2019-06-07 18:23:29 +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 Remove a call to vm_map_simplify_entry from _vm_map_clip_start. 2019-06-30 02:08:13 +00:00
vm_map.h Revert r349393, which leads to an assertion failure on bootup, in vm_map_stack_locked. 2019-06-26 03:12:57 +00:00
vm_meter.c Provide separate accounting for user-wired pages. 2019-05-13 16:38:48 +00:00
vm_mmap.c Control implicit PROT_MAX() using procctl(2) and the FreeBSD note 2019-07-02 19:07:17 +00:00
vm_object.c Add a return value to vm_page_remove(). 2019-06-26 17:37:51 +00:00
vm_object.h Change the vm_ooffset_t type to unsigned. 2018-12-02 13:16:46 +00:00
vm_page.c Mark pages allocated from the per-CPU cache. 2019-07-02 19:51:40 +00:00
vm_page.h Mark pages allocated from the per-CPU cache. 2019-07-02 19:51:40 +00:00
vm_pageout.c Add a vm_page_wired() predicate. 2019-06-02 01:00:17 +00:00
vm_pageout.h Provide separate accounting for user-wired pages. 2019-05-13 16:38:48 +00:00
vm_pagequeue.h Allow empty NUMA memory domains to support Threadripper2 2018-10-01 14:14:21 +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_param.h SPDX: Consider code from Carnegie-Mellon University. 2017-11-30 15:48:35 +00:00
vm_phys.c The function vm_phys_free_contig invokes vm_phys_free_pages for every 2019-05-31 21:02:42 +00:00
vm_phys.h The function vm_phys_free_contig invokes vm_phys_free_pages for every 2019-05-31 21:02:42 +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 The means of finding ranges of free pages was changed for 2019-06-06 16:28:34 +00:00
vm_reserv.h Retire vm_reserv_extend_{contig,page}(). These functions were introduced 2019-06-03 05:15:36 +00:00
vm_swapout_dummy.c SPDX: Consider code from Carnegie-Mellon University. 2017-11-30 15:48:35 +00:00
vm_swapout.c linuxkpi: Use pageproc instead of vmproc 2018-11-21 04:34:18 +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 Include ktr.h in more compilation units 2019-05-21 20:38:48 +00:00
vnode_pager.h