Revision 01599fca6758d2cd133e78f87426fc851c9ea725 authored by Andrew Morton on 13 April 2009, 17:27:49 UTC, committed by Linus Torvalds on 13 April 2009, 18:09:46 UTC
Atttempting to rid us of the problematic work_on_cpu(). Just use smp_call_fuction_single() here. This repairs a 10% sysbench(oltp)+mysql regression which Mike reported, due to commit 6b44003e5ca66a3fffeb5bc90f40ada2c4340896 Author: Andrew Morton <akpm@linux-foundation.org> Date: Thu Apr 9 09:50:37 2009 -0600 work_on_cpu(): rewrite it to create a kernel thread on demand It seems that the kernel calls these acpi-cpufreq functions at a quite high frequency. Valdis Kletnieks also reports that this causes 70-90 forks per second on his hardware. Cc: Valdis.Kletnieks@vt.edu Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Cc: Len Brown <len.brown@intel.com> Cc: Zhao Yakui <yakui.zhao@intel.com> Acked-by: Dave Jones <davej@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Tested-by: Mike Galbraith <efault@gmx.de> Cc: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Ingo Molnar <mingo@elte.hu> [ Made it use smp_call_function_many() instead of looping over cpu's with smp_call_function_single() - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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lzo | ||
reed_solomon | ||
zlib_deflate | ||
zlib_inflate | ||
.gitignore | -rw-r--r-- | 51 bytes |
Kconfig | -rw-r--r-- | 3.9 KB |
Kconfig.debug | -rw-r--r-- | 33.3 KB |
Kconfig.kgdb | -rw-r--r-- | 1.8 KB |
Makefile | -rw-r--r-- | 3.1 KB |
argv_split.c | -rw-r--r-- | 1.8 KB |
audit.c | -rw-r--r-- | 1.2 KB |
bcd.c | -rw-r--r-- | 257 bytes |
bitmap.c | -rw-r--r-- | 30.5 KB |
bitrev.c | -rw-r--r-- | 2.1 KB |
bug.c | -rw-r--r-- | 4.6 KB |
bust_spinlocks.c | -rw-r--r-- | 636 bytes |
check_signature.c | -rw-r--r-- | 599 bytes |
cmdline.c | -rw-r--r-- | 3.6 KB |
cpumask.c | -rw-r--r-- | 4.4 KB |
crc-ccitt.c | -rw-r--r-- | 3.0 KB |
crc-itu-t.c | -rw-r--r-- | 2.8 KB |
crc-t10dif.c | -rw-r--r-- | 2.9 KB |
crc16.c | -rw-r--r-- | 2.8 KB |
crc32.c | -rw-r--r-- | 14.9 KB |
crc32defs.h | -rw-r--r-- | 1.0 KB |
crc7.c | -rw-r--r-- | 2.3 KB |
ctype.c | -rw-r--r-- | 1.3 KB |
debug_locks.c | -rw-r--r-- | 1.1 KB |
debugobjects.c | -rw-r--r-- | 23.8 KB |
dec_and_lock.c | -rw-r--r-- | 806 bytes |
decompress.c | -rw-r--r-- | 1.1 KB |
decompress_bunzip2.c | -rw-r--r-- | 23.0 KB |
decompress_inflate.c | -rw-r--r-- | 3.5 KB |
decompress_unlzma.c | -rw-r--r-- | 15.2 KB |
devres.c | -rw-r--r-- | 7.7 KB |
div64.c | -rw-r--r-- | 2.3 KB |
dma-debug.c | -rw-r--r-- | 23.5 KB |
dump_stack.c | -rw-r--r-- | 290 bytes |
dynamic_debug.c | -rw-r--r-- | 18.0 KB |
extable.c | -rw-r--r-- | 1.9 KB |
fault-inject.c | -rw-r--r-- | 7.9 KB |
find_last_bit.c | -rw-r--r-- | 1.1 KB |
find_next_bit.c | -rw-r--r-- | 6.4 KB |
gen_crc32table.c | -rw-r--r-- | 1.8 KB |
genalloc.c | -rw-r--r-- | 5.3 KB |
halfmd4.c | -rw-r--r-- | 2.0 KB |
hexdump.c | -rw-r--r-- | 6.1 KB |
hweight.c | -rw-r--r-- | 1.6 KB |
idr.c | -rw-r--r-- | 21.3 KB |
inflate.c | -rw-r--r-- | 38.6 KB |
int_sqrt.c | -rw-r--r-- | 533 bytes |
iomap.c | -rw-r--r-- | 7.4 KB |
iomap_copy.c | -rw-r--r-- | 2.1 KB |
iommu-helper.c | -rw-r--r-- | 2.0 KB |
ioremap.c | -rw-r--r-- | 2.1 KB |
irq_regs.c | -rw-r--r-- | 578 bytes |
is_single_threaded.c | -rw-r--r-- | 1.2 KB |
kasprintf.c | -rw-r--r-- | 680 bytes |
kernel_lock.c | -rw-r--r-- | 2.9 KB |
klist.c | -rw-r--r-- | 9.3 KB |
kobject.c | -rw-r--r-- | 20.7 KB |
kobject_uevent.c | -rw-r--r-- | 8.3 KB |
kref.c | -rw-r--r-- | 1.9 KB |
libcrc32c.c | -rw-r--r-- | 2.1 KB |
list_debug.c | -rw-r--r-- | 1.5 KB |
lmb.c | -rw-r--r-- | 11.4 KB |
locking-selftest-hardirq.h | -rw-r--r-- | 207 bytes |
locking-selftest-mutex.h | -rw-r--r-- | 120 bytes |
locking-selftest-rlock-hardirq.h | -rw-r--r-- | 74 bytes |
locking-selftest-rlock-softirq.h | -rw-r--r-- | 74 bytes |
locking-selftest-rlock.h | -rw-r--r-- | 158 bytes |
locking-selftest-rsem.h | -rw-r--r-- | 163 bytes |
locking-selftest-softirq.h | -rw-r--r-- | 207 bytes |
locking-selftest-spin-hardirq.h | -rw-r--r-- | 73 bytes |
locking-selftest-spin-softirq.h | -rw-r--r-- | 73 bytes |
locking-selftest-spin.h | -rw-r--r-- | 118 bytes |
locking-selftest-wlock-hardirq.h | -rw-r--r-- | 74 bytes |
locking-selftest-wlock-softirq.h | -rw-r--r-- | 74 bytes |
locking-selftest-wlock.h | -rw-r--r-- | 158 bytes |
locking-selftest-wsem.h | -rw-r--r-- | 163 bytes |
locking-selftest.c | -rw-r--r-- | 28.6 KB |
nlattr.c | -rw-r--r-- | 12.2 KB |
parser.c | -rw-r--r-- | 6.0 KB |
percpu_counter.c | -rw-r--r-- | 3.2 KB |
plist.c | -rw-r--r-- | 2.8 KB |
prio_heap.c | -rw-r--r-- | 1.4 KB |
prio_tree.c | -rw-r--r-- | 12.2 KB |
proportions.c | -rw-r--r-- | 9.3 KB |
radix-tree.c | -rw-r--r-- | 31.0 KB |
random32.c | -rw-r--r-- | 3.8 KB |
ratelimit.c | -rw-r--r-- | 1.3 KB |
rbtree.c | -rw-r--r-- | 8.5 KB |
reciprocal_div.c | -rw-r--r-- | 159 bytes |
rwsem-spinlock.c | -rw-r--r-- | 6.8 KB |
rwsem.c | -rw-r--r-- | 6.4 KB |
scatterlist.c | -rw-r--r-- | 11.8 KB |
sha1.c | -rw-r--r-- | 2.4 KB |
show_mem.c | -rw-r--r-- | 1.4 KB |
smp_processor_id.c | -rw-r--r-- | 1.1 KB |
sort.c | -rw-r--r-- | 2.5 KB |
spinlock_debug.c | -rw-r--r-- | 6.8 KB |
string.c | -rw-r--r-- | 13.6 KB |
string_helpers.c | -rw-r--r-- | 1.7 KB |
swiotlb.c | -rw-r--r-- | 25.6 KB |
syscall.c | -rw-r--r-- | 2.4 KB |
textsearch.c | -rw-r--r-- | 9.5 KB |
ts_bm.c | -rw-r--r-- | 5.3 KB |
ts_fsm.c | -rw-r--r-- | 10.6 KB |
ts_kmp.c | -rw-r--r-- | 4.3 KB |
vsprintf.c | -rw-r--r-- | 42.3 KB |
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