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52aec3308d
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Alex Shi 52aec3308d x86/tlb: replace INVALIDATE_TLB_VECTOR by CALL_FUNCTION_VECTOR 
There are 32 INVALIDATE_TLB_VECTOR now in kernel. That is quite big
amount of vector in IDT. But it is still not enough, since modern x86
sever has more cpu number. That still causes heavy lock contention
in TLB flushing.

The patch using generic smp call function to replace it. That saved 32
vector number in IDT, and resolved the lock contention in TLB
flushing on large system.

In the NHM EX machine 4P * 8cores * HT = 64 CPUs, hackbench pthread
has 3% performance increase.

Signed-off-by: Alex Shi <alex.shi@intel.com>
Link: http://lkml.kernel.org/r/1340845344-27557-9-git-send-email-alex.shi@intel.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2012-06-27 19:29:13 -07:00
..
alpha Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-06-01 11:53:44 -07:00
arm Merge branch 'fixes-for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-06-05 13:23:17 -07:00
avr32 fixups for signal breakage 2012-06-04 17:47:34 -04:00
blackfin Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-06-05 09:47:15 -07:00
c6x new helper: signal_delivered() 2012-06-01 12:58:52 -04:00
cris Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-06-01 11:53:44 -07:00
frv frv: Remove bogus closing parenthesis 2012-06-02 10:38:19 -04:00
h8300 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-06-01 11:53:44 -07:00
hexagon new helper: signal_delivered() 2012-06-01 12:58:52 -04:00
ia64 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-06-01 11:53:44 -07:00
m32r Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-06-01 11:53:44 -07:00
m68k Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-06-01 11:53:44 -07:00
microblaze new helper: signal_delivered() 2012-06-01 12:58:52 -04:00
mips - More robust parsing especially of xattr data in JFFS2 2012-06-01 16:55:42 -07:00
mn10300 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-06-01 11:53:44 -07:00
openrisc new helper: signal_delivered() 2012-06-01 12:58:52 -04:00
parisc [PARISC] fix code to find libgcc 2012-06-05 14:10:23 +09:00
powerpc powerpc: Fix kernel panic during kernel module load 2012-06-08 19:59:08 +10:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-06-01 11:53:44 -07:00
score new helper: signal_delivered() 2012-06-01 12:58:52 -04:00
sh - More robust parsing especially of xattr data in JFFS2 2012-06-01 16:55:42 -07:00
sparc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-06-01 11:53:44 -07:00
tile tile: add #include to unbreak build after generic init_task conversion 2012-06-06 11:29:35 -04:00
um new helper: signal_delivered() 2012-06-01 12:58:52 -04:00
unicore32 new helper: signal_delivered() 2012-06-01 12:58:52 -04:00
x86 x86/tlb: replace INVALIDATE_TLB_VECTOR by CALL_FUNCTION_VECTOR 2012-06-27 19:29:13 -07:00
xtensa fixups for signal breakage 2012-06-04 17:47:34 -04:00
.gitignore
Kconfig Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-05-25 09:18:59 -07:00