AcoSail/kernel_optimize_test
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kernel_optimize_test/mm
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Christoph Lameter 39bf6270f5 VM statistics: Make timer deferrable 
VM statistics updates do not matter if the kernel is in idle powersaving
mode.  So allow the timer to be deferred.

It would be better though if we could switch the timer between deferrable
and nondeferrable based on differentials present.  The timer would start
out nondeferrable and if we find that there were no updates in the last
statistics interval then we would switch the timer to deferrable.  If the
timer later finds again that there are differentials then go to
nondeferrable again.

And yet another way would be to run the timer shortly before going to idle?

The solution here means that the VM counters may be slightly off during
idle since differentials may be still pending while the timer is deferred.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-11 08:29:32 -07:00
..
allocpercpu.c [PATCH] Allow NULL pointers in percpu_free 2006-12-07 08:39:22 -08:00
backing-dev.c [PATCH] nfs: fix congestion control 2007-03-16 19:25:05 -07:00
bootmem.c [PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols 2006-12-07 08:39:44 -08:00
bounce.c block: blk_max_pfn is somtimes wrong 2007-03-27 08:52:47 +02:00
fadvise.c [PATCH] mm: change uses of f_{dentry,vfsmnt} to use f_path 2006-12-08 08:28:43 -08:00
filemap_xip.c fs: convert core functions to zero_user_page 2007-05-09 12:30:55 -07:00
filemap.c Fix a bad error case handling in read_cache_page_async() 2007-05-09 13:04:03 -07:00
filemap.h Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
fremap.c [PATCH] mm: more rmap debugging 2006-12-22 08:55:49 -08:00
highmem.c [PATCH] i386: PARAVIRT: add kmap_atomic_pte for mapping highpte pages 2007-05-02 19:27:15 +02:00
hugetlb.c pretend cpuset has some form of hugetlb page reservation 2007-05-09 12:30:49 -07:00
internal.h Make page->private usable in compound pages 2007-05-07 12:12:53 -07:00
Kconfig sh: generic quicklist support. 2007-05-09 01:35:00 +00:00
madvise.c mm: madvise avoid exclusive mmap_sem 2007-05-07 12:12:54 -07:00
Makefile Quicklists for page table pages 2007-05-07 12:12:54 -07:00
memory_hotplug.c [PATCH] Fix sparsemem on Cell 2007-01-11 18:18:20 -08:00
memory.c Add unitialized_var() macro for suppressing gcc warnings 2007-05-07 12:12:52 -07:00
mempolicy.c [PATCH] Page migration: Fix vma flag checking 2007-03-05 07:57:51 -08:00
mempool.c [PATCH] Numerous fixes to kernel-doc info in source files. 2007-02-11 10:51:32 -08:00
migrate.c page migration: fix NR_FILE_PAGES accounting 2007-04-24 08:23:08 -07:00
mincore.c [PATCH] mincore: vma crossing fix 2007-02-15 09:57:03 -08:00
mlock.c [PATCH] mlock cleanup 2006-12-07 08:39:22 -08:00
mmap.c Fix occurrences of "the the " 2007-05-09 08:57:56 +02:00
mmzone.c [PATCH] remove EXPORT_UNUSED_SYMBOL'ed symbols 2006-12-07 08:39:44 -08:00
mprotect.c [PATCH] paravirt: lazy mmu mode hooks.patch 2006-10-01 00:39:33 -07:00
mremap.c [PATCH] mm: mremap correct rmap accounting 2007-01-30 08:33:32 -08:00
msync.c [PATCH] mm: msync() cleanup 2006-09-26 08:48:45 -07:00
nommu.c move die notifier handling to common code 2007-05-08 11:15:04 -07:00
oom_kill.c oom: fix constraint deadlock 2007-05-07 12:12:55 -07:00
page_alloc.c early_pfn_to_nid needs to be __meminit 2007-05-10 09:26:52 -07:00
page_io.c [PATCH] swsusp: use block device offsets to identify swap locations 2006-12-07 08:39:27 -08:00
page-writeback.c Factor outstanding I/O error handling 2007-05-08 11:14:57 -07:00
pdflush.c [PATCH] Add include/linux/freezer.h and move definitions from sched.h 2006-12-07 08:39:27 -08:00
prio_tree.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
quicklist.c Quicklists for page table pages 2007-05-07 12:12:54 -07:00
readahead.c readahead: code cleanup 2007-05-07 12:12:52 -07:00
rmap.c fbdev: mm: Deferred IO support 2007-05-08 11:15:26 -07:00
shmem_acl.c [PATCH] Fix typos in mm/shmem_acl.c 2006-10-11 11:14:23 -07:00
shmem.c slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
slab.c Move remote node draining out of slab allocators 2007-05-09 12:30:56 -07:00
slob.c slob: fix page order calculation on not 4KB page 2007-05-07 12:12:57 -07:00
slub.c SLUB: remove nr_cpu_ids hack 2007-05-10 09:26:53 -07:00
sparse.c Add white list into modpost.c for memory hotplug code and ia64's machvec section 2007-05-08 11:14:57 -07:00
swap_state.c [PATCH] lockdep: locking init debugging improvement 2006-07-03 15:27:02 -07:00
swap.c Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
swapfile.c mm: make read_cache_page synchronous 2007-05-07 12:12:51 -07:00
thrash.c Bug in mm/thrash.c function grab_swap_token() 2007-05-11 08:29:32 -07:00
tiny-shmem.c [PATCH] mm/{,tiny-}shmem.c cleanups 2007-03-01 14:53:35 -08:00
truncate.c fs: convert core functions to zero_user_page 2007-05-09 12:30:55 -07:00
util.c [PATCH] slab: clean up leak tracking ifdefs a little bit 2006-10-04 07:55:13 -07:00
vmalloc.c move die notifier handling to common code 2007-05-08 11:15:04 -07:00
vmscan.c Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
vmstat.c VM statistics: Make timer deferrable 2007-05-11 08:29:32 -07:00