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6e02b3e932
glibc/sysdeps/x86_64
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Sajan Karumanchi 6e02b3e932 x86: Adding an upper bound for Enhanced REP MOVSB. 
In the process of optimizing memcpy for AMD machines, we have found the
vector move operations are outperforming enhanced REP MOVSB for data
transfers above the L2 cache size on Zen3 architectures.
To handle this use case, we are adding an upper bound parameter on
enhanced REP MOVSB:'__x86_rep_movsb_stop_threshold'.
As per large-bench results, we are configuring this parameter to the
L2 cache size for AMD machines and applicable from Zen3 architecture
supporting the ERMS feature.
For architectures other than AMD, it is the computed value of
non-temporal threshold parameter.

Reviewed-by: Premachandra Mallappa <premachandra.mallappa@amd.com>
2021-02-02 12:42:15 +01:00
..
64 Move architecture shlib-versions files to Linux-specific directories. 2014-07-17 14:31:12 +00:00
fpu libmvec: Add extra-test-objs to test-extras 2021-01-19 06:20:46 -08:00
multiarch x86: Adding an upper bound for Enhanced REP MOVSB. 2021-02-02 12:42:15 +01:00
nptl Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
x32 Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
____longjmp_chk.S
__longjmp.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
_mcount.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
abort-instr.h
add_n.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
addmul_1.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
bsd-_setjmp.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
bsd-setjmp.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
bzero.S
configure configure: Check for static PIE support 2021-01-21 15:54:50 +00:00
configure.ac configure: Check for static PIE support 2021-01-21 15:54:50 +00:00
crti.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
crtn.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-hwcaps-subdirs.c <sys/platform/x86.h>: Remove the C preprocessor magic 2021-01-21 05:58:17 -08:00
dl-irel.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-machine.h x86: Check IFUNC definition in unrelocated executable [BZ #20019] 2021-01-04 12:01:01 -08:00
dl-procinfo.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-runtime.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-tls.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-tls.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-tlsdesc.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-tlsdesc.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-trampoline.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-trampoline.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ffs.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ffsll.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
htonl.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ifuncmain8.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ifuncmod8.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Implies Remove dbl-64/wordsize-64 (part 2) 2021-01-07 15:26:26 +00:00
isa.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
l10nflist.c
link-defines.sym Replace __int128 with __int128_t 2014-05-30 10:50:21 -07:00
locale-defines.sym
localplt.data ld.so: Do not export free/calloc/malloc/realloc functions [BZ #25486] 2020-02-15 11:01:23 +01:00
lshift.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
machine-gmon.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Makefile x86_64: Add glibc-hwcaps support 2020-12-04 09:36:02 +01:00
memchr.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
memcmp.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
memcpy_chk.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
memcpy.S X86-64: Remove previous default/SSE2/AVX2 memcpy/memmove 2016-06-08 13:58:08 -07:00
memmove_chk.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
memmove.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
mempcpy_chk.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
mempcpy.S X86-64: Remove previous default/SSE2/AVX2 memcpy/memmove 2016-06-08 13:58:08 -07:00
memrchr.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
memset_chk.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
memset.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
memusage.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
mp_clz_tab.c
mul_1.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
preconfigure
preconfigure.ac
rawmemchr.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
rshift.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
rtld-offsets.sym x86-64: Align the stack in __tls_get_addr [BZ #21609] 2017-07-06 04:43:20 -07:00
sched_cpucount.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
setjmp.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
stack-aliasing.h Clean up stack-coloring macros. 2014-06-20 19:50:16 -07:00
stackguard-macros.h
stackinfo.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
start.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
stpcpy.S
strcasecmp_l-nonascii.c Use locale_t, not __locale_t, throughout glibc 2017-06-20 20:30:06 -04:00
strcasecmp_l.S
strcasecmp.S
strcat.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
strchr.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
strchrnul.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
strcmp.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
strcpy.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
strcspn.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
strlen.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
strncase_l-nonascii.c Use locale_t, not __locale_t, throughout glibc 2017-06-20 20:30:06 -04:00
strncase_l.S
strncase.S
strncmp.S
strnlen.S
strpbrk.S x86-64: Implement strcspn/strpbrk/strspn IFUNC selectors in C 2017-06-15 08:59:05 -07:00
strrchr.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
strspn.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
sub_n.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
submul_1.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
sysdep.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tls_get_addr.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tls-macros.h
tlsdesc.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tlsdesc.sym x86-64: Align the stack in __tls_get_addr [BZ #21609] 2017-07-06 04:43:20 -07:00
tst-audit3.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-audit4-aux.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-audit4.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-audit5.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-audit6.c Modify several tests to use test-skeleton.c 2015-07-15 15:10:23 +05:30
tst-audit7.c
tst-audit10-aux.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-audit10.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-audit.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-auditmod3a.c
tst-auditmod3b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod4a.c
tst-auditmod4b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod5a.c
tst-auditmod5b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod6a.c
tst-auditmod6b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod6c.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod7a.c
tst-auditmod7b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod10a.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-auditmod10b.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-avx512-aux.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-avx512.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-avx512mod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avx-aux.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-avx.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-avxmod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-glibc-hwcaps.c <sys/platform/x86.h>: Remove the C preprocessor magic 2021-01-21 05:58:17 -08:00
tst-mallocalign1.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-platform-1.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-platformmod-1.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-platformmod-2.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-quad1.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-quad1pie.c
tst-quad2.c
tst-quad2pie.c
tst-quadmod1.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-quadmod1pie.S
tst-quadmod2.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-quadmod2pie.S
tst-split-dynreloc.c Fix dynamic linker issue with bind-now 2015-08-19 05:37:01 -07:00
tst-split-dynreloc.lds Fix dynamic linker issue with bind-now 2015-08-19 05:37:01 -07:00
tst-sse.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-ssemod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-stack-align.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-x86_64-1.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
tst-x86_64mod-1.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Versions Move __fentry__ version definition to sysdeps/{i386,x86_64} 2018-08-10 09:07:44 +02:00
wcschr.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
wcscmp.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
wcslen.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
wcsrchr.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
wmemset_chk.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
wmemset.S x86-64: Optimize wmemset with SSE2/AVX2/AVX512 2017-06-05 11:09:59 -07:00
wordcopy.c X86-64: Add dummy memcopy.h and wordcopy.c 2016-06-09 04:38:34 -07:00