diff options
| author | Richard Braun <rbraun@sceen.net> | 2012-09-23 00:25:13 +0200 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2012-09-23 00:28:40 +0200 |
| commit | 9eacb0eab6eb8e35bb26ab3db660973fddf9e8fb (patch) | |
| tree | 03d50c74d110f2bab3a8fb2ebac9eb7aca0313c4 /vm/vm_user.c | |
| parent | f5f6f62357b90e1ce1eb24f2929314b0d84078d0 (diff) | |
Provide basic page cache statistics
* Makefrag.am (EXTRA_DIST): Add kern/gnumach.srv.
(include_mach_HEADERS): Add include/mach/gnumach.defs and
include/mach/vm_cache_statistics.h
(nodist_libkernel_a_SOURCES): Add kern/gnumach.server.defs.c,
kern/gnumach.server.h, kern/gnumach.server.c, kern/gnumach.server.msgids,
kern/gnumach.server.defs.
* include/mach/mach_types.h: Add #include <mach/vm_cache_statistics.h>.
* kern/ipc_kobject.c (ipc_kobject_server): Declare and call
gnumach_server_routine.
* vm/vm_object.c (vm_object_cached_pages): New variable.
(vm_object_cached_pages_lock_data): Likewise.
(vm_object_deallocate): Update number of cached pages.
(vm_object_lookup): Likewise.
(vm_object_lookup_name): Likewise.
(vm_object_destroy): Likewise.
(vm_object_enter): Likewise.
* vm/vm_object.h (ref_count): Declare as int.
(resident_page_count): Likewise.
(vm_object_cached_count): Add extern declaration.
(vm_object_cached_pages): Likewise.
(vm_object_cached_pages_lock_data): Likewise.
(vm_object_cached_pages_update): New macro.
* vm/vm_resident.c (vm_page_insert): Assert resident page count doesn't
overflow, update number of cached pages as appropriate.
(vm_page_replace): Likewise.
(vm_page_remove): Update number of cached pages as appropriate.
* vm/vm_user.c: Add #include <mach/vm_cache_statistics.h>.
(vm_cache_statistics): New function.
* vm/vm_user.h: Add #include <mach/mach_types.h>.
(vm_cache_statistics): New declaration.
* include/mach/gnumach.defs: New file.
Diffstat (limited to 'vm/vm_user.c')
| -rw-r--r-- | vm/vm_user.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/vm/vm_user.c b/vm/vm_user.c index 59c2a36..a8ce982 100644 --- a/vm/vm_user.c +++ b/vm/vm_user.c @@ -38,6 +38,7 @@ #include <mach/vm_attributes.h> #include <mach/vm_param.h> #include <mach/vm_statistics.h> +#include <mach/vm_cache_statistics.h> #include <kern/host.h> #include <kern/task.h> #include <vm/vm_fault.h> @@ -189,6 +190,29 @@ kern_return_t vm_statistics(map, stat) return(KERN_SUCCESS); } +kern_return_t vm_cache_statistics( + vm_map_t map, + vm_cache_statistics_data_t *stats) +{ + if (map == VM_MAP_NULL) + return KERN_INVALID_ARGUMENT; + + stats->cache_object_count = vm_object_cached_count; + stats->cache_count = vm_object_cached_pages; + + /* XXX Not implemented yet */ + stats->active_tmp_count = 0; + stats->inactive_tmp_count = 0; + stats->active_perm_count = 0; + stats->inactive_perm_count = 0; + stats->dirty_count = 0; + stats->laundry_count = 0; + stats->writeback_count = 0; + stats->slab_count = 0; + stats->slab_reclaim_count = 0; + return KERN_SUCCESS; +} + /* * Handle machine-specific attributes for a mapping, such * as cachability, migrability, etc. |