Alan Cox a08f2cf69e Although we perform path compression to reduce the height of the trie and ...

the number of interior nodes, we have previously created a level zero
interior node at the root of every non-empty trie, even when that node is
not strictly necessary, i.e., it has only one child.  This change is the
second (and final) step in eliminating those unnecessary level zero interior
nodes.  Specifically, it updates the deletion and insertion functions so
that they do not require a level zero interior node at the root of the trie.
For a "buildworld" workload, this change results in a 16.8% reduction in the
number of interior nodes allocated and a similar reduction in the average
execution time for lookup functions.  For example, the average execution
time for a call to vm_radix_lookup_ge() is reduced by 22.9%.

Reviewed by:	attilio, jeff (an earlier version)
Sponsored by:	EMC / Isilon Storage Division

2013-04-15 06:12:00 +00:00

..

_vm_radix.h

Sync back vmcontention branch into HEAD:

2013-03-18 00:25:02 +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

Switch the vm_object mutex to be a rwlock. This will enable in the

2013-03-09 02:32:23 +00:00

memguard.c

Fix a bug with memguard(9) on 32-bit architectures without a

2012-07-15 20:29:48 +00:00

memguard.h

Fix a bug with memguard(9) on 32-bit architectures without a

2012-07-15 20:29:48 +00:00

phys_pager.c

Switch the vm_object mutex to be a rwlock. This will enable in the

2013-03-09 02:32:23 +00:00

pmap.h

Add pmap function pmap_copy_pages(), which copies the content of the

2013-03-14 20:18:12 +00:00

redzone.c

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

2011-11-07 15:43:11 +00:00

redzone.h

…

sg_pager.c

Switch the vm_object mutex to be a rwlock. This will enable in the

2013-03-09 02:32:23 +00:00

swap_pager.c

Do not map the swap i/o pbufs if the geom provider for the swap

2013-03-19 14:39:27 +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_core.c

Convert UMA code to C99 uintXX_t types.

2013-04-09 17:43:48 +00:00

uma_dbg.c

Convert UMA code to C99 uintXX_t types.

2013-04-09 17:43:48 +00:00

uma_dbg.h

…

uma_int.h

Convert UMA code to C99 uintXX_t types.

2013-04-09 17:43:48 +00:00

uma.h

Convert UMA code to C99 uintXX_t types.

2013-04-09 17:43:48 +00:00

vm_extern.h

Eliminate vm_phys_bootstrap_alloc(). It was a failed attempt at

2011-10-30 05:06:14 +00:00

vm_fault.c

Switch the vm_object mutex to be a rwlock. This will enable in the

2013-03-09 02:32:23 +00:00

vm_glue.c

Switch the vm_object mutex to be a rwlock. This will enable in the

2013-03-09 02:32:23 +00:00

vm_init.c

Only size and create the bio_transient_map when unmapped buffers are

2013-03-21 07:28:15 +00:00

vm_kern.c

Implement the concept of the unmapped VMIO buffers, i.e. buffers which

2013-03-19 14:13:12 +00:00

vm_kern.h

…

vm_map.c

Fix the assertions for the state of the object under the map entry

2013-04-09 10:04:10 +00:00

vm_map.h

- Get rid of unused function vmspace_wired_count().

2013-01-14 12:12:56 +00:00

vm_meter.c

Switch the vm_object mutex to be a rwlock. This will enable in the

2013-03-09 02:32:23 +00:00

vm_mmap.c

Release the v_writecount reference on the vnode in case of error,

2013-03-28 06:39:27 +00:00

vm_object.c

Sync back vmcontention branch into HEAD:

2013-03-18 00:25:02 +00:00

vm_object.h

Sync back vmcontention branch into HEAD:

2013-03-18 00:25:02 +00:00

vm_page.c

Sync back vmcontention branch into HEAD:

2013-03-18 00:25:02 +00:00

vm_page.h

The per-page act_count can be made very-easily protected by the

2013-04-08 20:02:27 +00:00

vm_pageout.c

The per-page act_count can be made very-easily protected by the

2013-04-08 20:02:27 +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

Prepare to replace the buf splay with a trie:

2013-04-06 22:21:23 +00:00

vm_pager.h

Switch the vm_object mutex to be a rwlock. This will enable in the

2013-03-09 02:32:23 +00:00

vm_param.h

…

vm_phys.c

Make VM_NDOMAIN a kernel option so that it can be enabled from a kernel

2013-02-14 19:38:04 +00:00

vm_phys.h

Move the declaration of vm_phys_paddr_to_vm_page() from vm/vm_page.h

2012-11-16 05:55:56 +00:00

vm_radix.c

Although we perform path compression to reduce the height of the trie and

2013-04-15 06:12:00 +00:00

vm_radix.h

Sync back vmcontention branch into HEAD:

2013-03-18 00:25:02 +00:00

vm_reserv.c

Sync back vmcontention branch into HEAD:

2013-03-18 00:25:02 +00:00

vm_reserv.h

Introduce vm_reserv_alloc_contig() and teach vm_page_alloc_contig() how to

2011-12-05 18:29:25 +00:00

vm_unix.c

- Improve readability of sys_obreak().

2013-01-11 09:58:35 +00:00

vm_zeroidle.c

…

vm.h

Implement the concept of the unmapped VMIO buffers, i.e. buffers which

2013-03-19 14:13:12 +00:00

vnode_pager.c

Fix the logic inversion in the r248512.

2013-03-20 09:44:23 +00:00

vnode_pager.h

Account the writeable shared mappings backed by file in the vnode

2012-02-23 21:07:16 +00:00