Alex Shi d8dfe60d6d x86/tlb: fall back to flush all when meet a THP large page ... We don't need to flush large pages by PAGE_SIZE step, that just waste time. and actually, large page don't need 'invlpg' optimizing according to our micro benchmark. So, just flush whole TLB is enough for them. The following result is tested on a 2CPU * 4cores * 2HT NHM EP machine, with THP 'always' setting. Multi-thread testing, '-t' paramter is thread number: without this patch with this patch ./mprotect -t 1 14ns 13ns ./mprotect -t 2 13ns 13ns ./mprotect -t 4 12ns 11ns ./mprotect -t 8 14ns 10ns ./mprotect -t 16 28ns 28ns ./mprotect -t 32 54ns 52ns ./mprotect -t 128 200ns 200ns Signed-off-by: Alex Shi <alex.shi@intel.com> Link: http://lkml.kernel.org/r/1340845344-27557-4-git-send-email-alex.shi@intel.com Signed-off-by: H. Peter Anvin <hpa@zytor.com>		2012-06-27 19:29:09 -07:00
..
boot	x86, efi stub: Add .reloc section back into image	2012-06-07 09:52:33 -07:00
configs
crypto	crypto: aesni-intel - move more common code to ablk_init_common	2012-05-15 17:25:33 +10:00
ia32	most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set	2012-06-01 12:58:51 -04:00
include/asm	x86/flush_tlb: try flush_tlb_single one by one in flush_tlb_range	2012-06-27 19:29:07 -07:00
kernel	x86/tlb_info: get last level TLB entry number of CPU	2012-06-27 19:28:24 -07:00
kvm	KVM: MMU: fix huge page adapted on non-PAE host	2012-05-28 17:41:15 +03:00
lguest
lib	perf/x86: Check user address explicitly in copy_from_user_nmi()	2012-06-06 17:08:04 +02:00
math-emu
mm	x86/tlb: fall back to flush all when meet a THP large page	2012-06-27 19:29:09 -07:00
net
oprofile
pci	Features:	2012-05-24 16:02:08 -07:00
platform	x86/flush_tlb: try flush_tlb_single one by one in flush_tlb_range	2012-06-27 19:29:07 -07:00
power
realmode	x86, realmode: Move end signature into header.S	2012-05-21 00:02:45 -07:00
syscalls	syscalls, x86: add __NR_kcmp syscall	2012-05-31 17:49:32 -07:00
tools	x86/decoder: Fix bsr/bsf/jmpe decoding with operand-size prefix	2012-06-06 08:54:18 +02:00
um	most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set	2012-06-01 12:58:51 -04:00
vdso
video
xen	x86/flush_tlb: try flush_tlb_single one by one in flush_tlb_range	2012-06-27 19:29:07 -07:00
.gitignore
Kbuild
Kconfig	x86, efi: Add EFI boot stub documentation	2012-06-01 09:11:41 -07:00
Kconfig.cpu
Kconfig.debug
Makefile	md updates for 3.5	2012-05-23 17:08:40 -07:00
Makefile.um
Makefile_32.cpu