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05f3633da4
glibc/sysdeps/x86_64
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Ling Ma 05f3633da4 Improve 64bit memcpy performance for Haswell CPU with AVX instruction 
In this patch we take advantage of HSW memory bandwidth, manage to
reduce miss branch prediction by avoiding using branch instructions and
force destination to be aligned with avx instruction.

The CPU2006 403.gcc benchmark indicates this patch improves performance
from 2% to 10%.
2014-07-30 08:02:35 -07:00
..
64 Move architecture shlib-versions files to Linux-specific directories. 2014-07-17 14:31:12 +00:00
bits Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
fpu Fix yn overflow handling in non-default rounding modes (bug 16561, bug 16562). 2014-06-27 14:52:13 +00:00
multiarch Improve 64bit memcpy performance for Haswell CPU with AVX instruction 2014-07-30 08:02:35 -07:00
nptl Remove configure tests for assembler CFI support. 2014-06-26 17:33:32 +00:00
x32 Move architecture shlib-versions files to Linux-specific directories. 2014-07-17 14:31:12 +00:00
____longjmp_chk.S
__longjmp.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
_mcount.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
abort-instr.h
add_n.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
addmul_1.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
backtrace.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
bsd-_setjmp.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
bsd-setjmp.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
bzero.S
cacheinfo.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
configure Enable AVX2 optimized memset only if -mavx2 works 2014-07-14 07:58:27 -07:00
configure.ac Enable AVX2 optimized memset only if -mavx2 works 2014-07-14 07:58:27 -07:00
crti.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
crtn.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
dl-irel.h Use glibc_likely instead __builtin_expect. 2014-02-10 15:07:12 +01:00
dl-lookupcfg.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
dl-machine.h Fix Wundef warning for ELF_MACHINE_NO_RELA 2014-06-26 22:30:40 +05:30
dl-runtime.c
dl-tls.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
dl-tlsdesc.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
dl-tlsdesc.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
dl-trampoline.h Save/restore bound registers for _dl_runtime_profile 2014-04-16 14:46:49 -07:00
dl-trampoline.S Save/restore bound registers for _dl_runtime_profile 2014-04-16 14:46:49 -07:00
ffs.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
ffsll.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
hp-timing.h Always provide HP_SMALL_TIMING_AVAIL 2014-07-03 08:38:36 -07:00
htonl.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Implies
jmpbuf-offsets.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
jmpbuf-unwind.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
l10nflist.c
ldbl2mpn.c
ldsodefs.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
link-defines.sym Replace __int128 with __int128_t 2014-05-30 10:50:21 -07:00
locale-defines.sym
lshift.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
machine-gmon.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Makefile Remove HP_TIMING_DIFF_INIT and dl_hp_timing_overhead 2014-07-03 08:38:25 -07:00
memchr.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
memcmp.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
memcpy_chk.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
memcpy.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
memmove.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
mempcpy_chk.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
mempcpy.S Remove bounded-pointers handling from x86_64 assembly sources. 2013-02-17 21:57:26 +00:00
memrchr.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
memset_chk.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
memset.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
memusage.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
mp_clz_tab.c
mul_1.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
preconfigure rename configure.in to configure.ac 2013-10-30 17:32:08 +10:00
preconfigure.ac rename configure.in to configure.ac 2013-10-30 17:32:08 +10:00
rawmemchr.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
rshift.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
rtld-memcmp.c
rtld-memset.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
rtld-strchr.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
rtld-strlen.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
sched_cpucount.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
setjmp.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
stack-aliasing.h Clean up stack-coloring macros. 2014-06-20 19:50:16 -07:00
stackguard-macros.h BZ #15754: CVE-2013-4788 2013-09-23 00:52:09 -04:00
stackinfo.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
start.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
stpcpy_chk.S
stpcpy.S
strcasecmp_l-nonascii.c
strcasecmp_l.S
strcasecmp.S
strcat.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
strchr.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
strchrnul.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
strcmp.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
strcpy_chk.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
strcpy.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
strcspn.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
strlen.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
strncase_l-nonascii.c
strncase_l.S
strncase.S
strncmp.S
strnlen.S Faster strlen on x64. 2013-03-18 07:39:12 +01:00
strpbrk.S
strrchr.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
strspn.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
strtok_r.S Remove bounded-pointers handling from x86_64 assembly sources. 2013-02-17 21:57:26 +00:00
strtok.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
sub_n.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
submul_1.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
sysdep.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
tls-macros.h
tlsdesc.c Fix -Wundef warnings for SHARED 2014-07-09 09:26:07 +01:00
tlsdesc.sym
tst-audit3.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-audit4.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-audit5.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-audit6.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-audit7.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-audit10.c Save and restore AVX-512 zmm registers to x86-64 ld.so 2014-03-13 11:19:08 -07:00
tst-audit.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
tst-auditmod3a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod3b.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod4a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod4b.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod5a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod5b.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod6a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod6b.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod6c.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod7a.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod7b.c Move x86_64-specific audit tests to sysdeps/x86_64/. 2013-04-25 19:23:11 +00:00
tst-auditmod10a.c Save and restore AVX-512 zmm registers to x86-64 ld.so 2014-03-13 11:19:08 -07:00
tst-auditmod10b.c Save and restore AVX-512 zmm registers to x86-64 ld.so 2014-03-13 11:19:08 -07:00
tst-mallocalign1.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
tst-quad1.c Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
tst-quad1pie.c
tst-quad2.c
tst-quad2pie.c
tst-quadmod1.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
tst-quadmod1pie.S
tst-quadmod2.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
tst-quadmod2pie.S
tst-stack-align.h Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Versions
wcschr.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
wcscmp.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
wcslen.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
wcsrchr.S Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00