Alan Cox 9f1abe3df4 Eliminate typically pointless calls to vm_fault_prefault() on soft, copy- ...

on-write faults.  On a page fault, when we call vm_fault_prefault(), it
probes the pmap and the shadow chain of vm objects to see if there are
opportunities to create read and/or execute-only mappings to neighoring
pages.  For example, in the case of hard faults, such effort typically pays
off, that is, mappings are created that eliminate future soft page faults.
However, in the the case of soft, copy-on-write faults, the effort very
rarely pays off.  (See the review for some specific data.)

Reviewed by:	kib, markj
MFC after:	3 weeks
Differential Revision:	https://reviews.freebsd.org/D17367

2018-10-27 17:49:46 +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

sys: further adoption of SPDX licensing ID tags.

2017-11-20 19:43:44 +00:00

memguard.c

Eliminate kmem_arena and kmem_object in preparation for further NUMA commits.

2017-11-28 23:40:54 +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

sys: general adoption of SPDX licensing ID tags.

2017-11-27 15:23:17 +00:00

swap_pager.c

eliminate locking surrounding ui_vmsize and swap reserve by using atomics

2018-10-05 05:50:56 +00:00

swap_pager.h

sys: further adoption of SPDX licensing ID tags.

2017-11-20 19:43:44 +00:00

uma_core.c

Use a vm_domainset iterator in keg_fetch_slab().

2018-10-24 16:41:47 +00:00

uma_dbg.c

sys: general adoption of SPDX licensing ID tags.

2017-11-27 15:23:17 +00:00

uma_dbg.h

sys: general adoption of SPDX licensing ID tags.

2017-11-27 15:23:17 +00:00

uma_int.h

Add an #include required after r339686.

2018-10-24 16:49:16 +00:00

uma.h

Eliminate the arena parameter to kmem_free(). Implicitly this corrects an

2018-08-25 19:38:08 +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

Eliminate the arena parameter to kmem_free(). Implicitly this corrects an

2018-08-25 19:38:08 +00:00

vm_fault.c

Eliminate typically pointless calls to vm_fault_prefault() on soft, copy-

2018-10-27 17:49:46 +00:00

vm_glue.c

Refactor domainset iterators for use by malloc(9) and UMA.

2018-10-23 16:35:58 +00:00

vm_init.c

Initialize static domainsets regardless of whether an SRAT is present.

2018-10-23 18:07:16 +00:00

vm_kern.c

Refactor domainset iterators for use by malloc(9) and UMA.

2018-10-23 16:35:58 +00:00

vm_kern.h

Ensure that imports into per-domain kmem arenas are KVA_QUANTUM-aligned.

2018-09-20 18:29:55 +00:00

vm_map.c

Unindent vm_map_simplify_entry() after r339506.

2018-10-21 00:11:56 +00:00

vm_map.h

Remove {max/min}_offset() macros, use vm_map_{max/min}() inlines.

2018-08-29 12:24:19 +00:00

vm_meter.c

Add a per-pagequeue pdpages counter.

2018-08-23 21:03:45 +00:00

vm_mmap.c

vm: stop taking proc lock in mmap to satisfy racct if it is disabled

2018-09-18 01:24:30 +00:00

vm_object.c

Refactor domainset iterators for use by malloc(9) and UMA.

2018-10-23 16:35:58 +00:00

vm_object.h

Use per-domain locks for vm page queue free. Move paging control from

2018-02-06 22:10:07 +00:00

vm_page.c

Refactor domainset iterators for use by malloc(9) and UMA.

2018-10-23 16:35:58 +00:00

vm_page.h

Remove vm_page_remque().

2018-09-06 16:17:45 +00:00

vm_pageout.c

Allow empty NUMA memory domains to support Threadripper2

2018-10-01 14:14:21 +00:00

vm_pageout.h

Avoid resource deadlocks when one domain has exhausted its memory. Attempt

2018-09-06 19:28:52 +00:00

vm_pagequeue.h

Allow empty NUMA memory domains to support Threadripper2

2018-10-01 14:14:21 +00:00

vm_pager.c

SPDX: Consider code from Carnegie-Mellon University.

2017-11-30 15:48:35 +00:00

vm_pager.h

sys: further adoption of SPDX licensing ID tags.

2017-11-20 19:43:44 +00:00

vm_param.h

SPDX: Consider code from Carnegie-Mellon University.

2017-11-30 15:48:35 +00:00

vm_phys.c

Initialize static domainsets regardless of whether an SRAT is present.

2018-10-23 18:07:16 +00:00

vm_phys.h

Create some global domainsets and refactor NUMA registration.

2018-10-20 17:36:00 +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

Use the ticks since the last update to reduce hysteresis in the partpopq and

2018-07-07 01:54:45 +00:00

vm_reserv.h

Lock reservations with a dedicated lock in each reservation. Protect the

2018-03-22 19:21:11 +00:00

vm_swapout_dummy.c

SPDX: Consider code from Carnegie-Mellon University.

2017-11-30 15:48:35 +00:00

vm_swapout.c

Avoid a redundancy in a comment updated by r339601.

2018-10-22 17:17:30 +00:00

vm_unix.c

Use __riscv to determine building for RISC-V

2018-07-23 19:49:54 +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

Implement several enhancements to NUMA policies.

2018-03-29 02:54:50 +00:00

vnode_pager.h

sys: further adoption of SPDX licensing ID tags.

2017-11-20 19:43:44 +00:00