kernel_optimize_test/lib
Bruno Randolf af55688435 lib: Improve EWMA efficiency by using bitshifts
Using bitshifts instead of division and multiplication should improve
performance. That requires weight and factor to be powers of two, but i think
this is something we can live with.

Thanks to Peter Zijlstra for the improved formula!

Signed-off-by: Bruno Randolf <br1@einfach.org>

--

v2:	use log2.h functions
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-12-06 15:58:43 -05:00
..
lzo
raid6 Move .gitignore from drivers/md to lib/raid6 2010-08-30 17:35:52 +10:00
reed_solomon
zlib_deflate
zlib_inflate
.gitignore
argv_split.c
atomic64_test.c
atomic64.c
audit.c
average.c lib: Improve EWMA efficiency by using bitshifts 2010-12-06 15:58:43 -05:00
bcd.c
bitmap.c lib/bitmap.c: use hex_to_bin() 2010-10-26 16:52:18 -07:00
bitrev.c
btree.c
bug.c modules: Fix module_bug_list list corruption race 2010-10-05 11:29:27 -07:00
bust_spinlocks.c
check_signature.c
checksum.c
cmdline.c
cpu-notifier-error-inject.c
cpumask.c
crc7.c
crc16.c
crc32.c
crc32defs.h
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c
ctype.c
debug_locks.c
debugobjects.c
dec_and_lock.c
decompress_bunzip2.c lib/decompress_bunzip2.c: fix checkstack warning 2010-08-11 08:59:23 -07:00
decompress_inflate.c
decompress_unlzma.c
decompress_unlzo.c
decompress.c
devres.c
div64.c div64_u64(): improve precision on 32bit platforms 2010-10-26 16:52:19 -07:00
dma-debug.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
dump_stack.c
dynamic_debug.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2010-10-22 19:36:42 -07:00
extable.c
fault-inject.c
find_last_bit.c
find_next_bit.c
flex_array.c flex_array: add helpers to get and put to make pointers easy to use 2010-08-09 20:45:09 -07:00
gcd.c
gen_crc32table.c
genalloc.c
halfmd4.c
hexdump.c
hweight.c
idr.c docbook: add idr/ida to kernel-api docbook 2010-10-26 17:40:56 -07:00
inflate.c MN10300: Don't try and #include <linux/slab.h> in lib/inflate.c from bootloader 2010-08-12 09:51:35 -07:00
int_sqrt.c
iomap_copy.c
iomap.c
iommu-helper.c iommu: inline iommu_num_pages 2010-08-09 20:45:05 -07:00
ioremap.c
irq_regs.c
is_single_threaded.c
kasprintf.c
Kconfig lib: Add generic exponentially weighted moving average (EWMA) function 2010-11-18 14:21:52 -05:00
Kconfig.debug Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2010-10-27 19:04:36 -07:00
Kconfig.kgdb
Kconfig.kmemcheck
kernel_lock.c
klist.c
kobject_uevent.c kobject_uevent: fix typo in comments 2010-08-23 18:12:46 -07:00
kobject.c kobject: Introduce kset_find_obj_hinted. 2010-10-22 10:16:44 -07:00
kref.c
lcm.c
libcrc32c.c
list_debug.c list debugging: warn when deleting a deleted entry 2010-08-09 20:45:08 -07:00
list_sort.c lib/list_sort: test: check element addresses 2010-10-26 16:52:19 -07:00
locking-selftest-hardirq.h
locking-selftest-mutex.h
locking-selftest-rlock-hardirq.h
locking-selftest-rlock-softirq.h
locking-selftest-rlock.h
locking-selftest-rsem.h
locking-selftest-softirq.h
locking-selftest-spin-hardirq.h
locking-selftest-spin-softirq.h
locking-selftest-spin.h
locking-selftest-wlock-hardirq.h
locking-selftest-wlock-softirq.h
locking-selftest-wlock.h
locking-selftest-wsem.h
locking-selftest.c
lru_cache.c
Makefile lib: Add generic exponentially weighted moving average (EWMA) function 2010-11-18 14:21:52 -05:00
nlattr.c
parser.c lib/parser: cleanup match_number() 2010-10-26 16:52:19 -07:00
percpu_counter.c percpu_counter: use this_cpu_ptr() instead of per_cpu_ptr() 2010-10-26 16:52:19 -07:00
plist.c
prio_heap.c
prio_tree.c
proportions.c
radix-tree.c Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu into core/rcu 2010-10-07 09:43:11 +02:00
random32.c
ratelimit.c
rational.c
rbtree.c
reciprocal_div.c
rwsem-spinlock.c
rwsem.c rwsem: smaller wrappers around rwsem_down_failed_common 2010-08-09 20:45:11 -07:00
scatterlist.c scatterlist: prevent invalid free when alloc fails 2010-08-30 19:55:09 +02:00
sha1.c
show_mem.c
smp_processor_id.c
sort.c
spinlock_debug.c
string_helpers.c
string.c
swiotlb.c swiotlb: Use page alignment for early buffer allocation 2010-10-11 17:08:36 -04:00
syscall.c
textsearch.c
ts_bm.c
ts_fsm.c
ts_kmp.c
uuid.c
vsprintf.c lib: fix scnprintf() if @size is == 0 2010-10-26 16:52:16 -07:00