opnsense-src/sys/vm
Alan Cox d8015db3b5 Refinements to r281079's sequential access optimization: Prefetched pages,
which constitute the majority of the pages that are processed by
vm_fault_dontneed(), are already near the tail of the inactive queue.  Only
the pages at faulting virtual addresses are actually moved by
vm_page_advise(..., MADV_DONTNEED).  However, vm_page_advise(...,
MADV_DONTNEED) is simultaneously too aggressive and passive for the moved
pages.  It makes most of these pages too easily reclaimable, and at the same
time it leaves enough pages in the active queue to trigger pageouts by the
page daemon.  Instead, with this change, the pages at faulting virtual
addresses are moved to the tail of the inactive queue, where they are
relatively close to the pages prefetched by the same page fault.

Discussed with:	jeff
Sponsored by:	EMC / Isilon Storage Division
2015-08-03 20:30:27 +00:00
..
_vm_radix.h On all the architectures, avoid to preallocate the physical memory 2013-08-09 11:28:55 +00:00
default_pager.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
device_pager.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
memguard.c Add comments about CTLFLAG_RDTUN vs. TUNABLE_INT_FETCH. 2015-03-26 05:20:18 +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 Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +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 Add buffer corruption protection (RedZone) for kernel's malloc(9). 2006-01-31 11:09:21 +00:00
sg_pager.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
swap_pager.c Refactor unmapped buffer address handling. 2015-07-23 19:13:41 +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 The vmem callback to reclaim kmem arena address space on low or 2015-05-09 20:08:36 +00:00
uma_core.c Huge cleanup of random(4) code. 2015-06-30 17:00:45 +00:00
uma_dbg.c If INVARIANTS is specified, add ctor/dtor to junk memory if they are 2015-06-25 20:44:46 +00:00
uma_dbg.h Improve canonicalization of copyrights. Order copyrights by order of 2005-07-16 09:51:52 +00:00
uma_int.h Revert r281451. It causes a panic/hang early in boot for a number of 2015-04-24 17:03:53 +00:00
vm.h rename scheduler->swapper and SI_SUB_RUN_SCHEDULER->SI_SUB_LAST 2013-07-24 09:45:31 +00:00
vm_domain.c Add an initial NUMA affinity/policy configuration for threads and processes. 2015-07-11 15:21:37 +00:00
vm_domain.h Add an initial NUMA affinity/policy configuration for threads and processes. 2015-07-11 15:21:37 +00:00
vm_extern.h Add a new file operations hook for mmap operations. File type-specific 2015-06-04 19:41:15 +00:00
vm_fault.c Refinements to r281079's sequential access optimization: Prefetched pages, 2015-08-03 20:30:27 +00:00
vm_glue.c Make KPI of vm_pager_get_pages() more strict: if a pager changes a page 2015-06-12 11:32:20 +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 Correct a type error in kmem_unback(). Previously, kmem_unback() did not 2015-06-10 05:17:14 +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 Do not pretend that vm_fault(9) supports unwiring the address. Rename 2015-07-30 18:28:34 +00:00
vm_map.h Do not pretend that vm_fault(9) supports unwiring the address. Rename 2015-07-30 18:28:34 +00:00
vm_meter.c Place VM objects on the object list when created and never remove them. 2015-05-08 19:43:37 +00:00
vm_mmap.c Add a local variable initialization needed in the OBJT_DEFAULT case. 2015-07-05 22:26:19 +00:00
vm_object.c Revert r173708's modifications to vm_object_page_remove(). 2015-07-25 18:29:06 +00:00
vm_object.h Revert r173708's modifications to vm_object_page_remove(). 2015-07-25 18:29:06 +00:00
vm_page.c Retire VM_FREEPOOL_CACHE as the next step in eliminating PG_CACHE pages. 2015-06-08 04:59:32 +00:00
vm_page.h The intention of r254304 was to scan the active queue continuously. 2015-07-08 17:45:59 +00:00
vm_pageout.c The intention of r254304 was to scan the active queue continuously. 2015-07-08 17:45:59 +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 - Make 'struct buf *buf' private to vfs_bio.c. Having a global variable 2015-07-29 02:26:57 +00:00
vm_pager.h o Un-inline vm_pager_get_pages(), vm_pager_get_pages_async(). 2015-06-17 22:44:27 +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 Add an initial NUMA affinity/policy configuration for threads and processes. 2015-07-11 15:21:37 +00:00
vm_phys.h Add an initial NUMA affinity/policy configuration for threads and processes. 2015-07-11 15:21:37 +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 Retire VM_FREEPOOL_CACHE as the next step in eliminating PG_CACHE pages. 2015-06-08 04:59:32 +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 Implement lockless resource limits. 2015-06-10 10:48:12 +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 Refactor unmapped buffer address handling. 2015-07-23 19:13:41 +00:00
vnode_pager.h Merge from projects/sendfile: 2014-11-23 12:01:52 +00:00