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b9f145df85
glibc/sysdeps/aarch64
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Krzysztof Koch b9f145df85 aarch64: Increase small and medium cases for __memcpy_generic 
Increase the upper bound on medium cases from 96 to 128 bytes.
Now, up to 128 bytes are copied unrolled.

Increase the upper bound on small cases from 16 to 32 bytes so that
copies of 17-32 bytes are not impacted by the larger medium case.

Benchmarking:
The attached figures show relative timing difference with respect
to 'memcpy_generic', which is the existing implementation.
'memcpy_med_128' denotes the the version of memcpy_generic with
only the medium case enlarged. The 'memcpy_med_128_small_32' numbers
are for the version of memcpy_generic submitted in this patch, which
has both medium and small cases enlarged. The figures were generated
using the script from:
https://www.sourceware.org/ml/libc-alpha/2019-10/msg00563.html

Depending on the platform, the performance improvement in the
bench-memcpy-random.c benchmark ranges from 6% to 20% between
the original and final version of memcpy.S

Tested against GLIBC testsuite and randomized tests.
2019-11-12 17:08:18 +00:00
..
bits Split up endian.h to minimize exposure of BYTE_ORDER. 2019-10-01 14:54:46 -07:00
fpu Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
multiarch Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
nptl Split up endian.h to minimize exposure of BYTE_ORDER. 2019-10-01 14:54:46 -07:00
sys Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
__longjmp.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
abort-instr.h
atomic-machine.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
bsd-_setjmp.S
bsd-setjmp.S
configure
configure.ac
crti.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
crtn.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
dl-dtprocnum.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
dl-irel.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
dl-link.sym
dl-machine.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
dl-sysdep.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
dl-tls.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
dl-tlsdesc.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
dl-tlsdesc.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
dl-trampoline.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
dl-tunables.list Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
e_sqrtl.c Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
Implies Remove sysdeps/aarch64/soft-fp directory. 2018-05-22 17:23:34 +00:00
jmpbuf-offsets.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
jmpbuf-unwind.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
ldsodefs.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
libc-tls.c Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
libm-test-ulps Add new exp and exp2 implementations 2018-09-05 16:22:00 +01:00
libm-test-ulps-name
linkmap.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
machine-gmon.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
Makefile aarch64: new ifunc resolver ABI 2019-07-04 11:13:32 +01:00
math-tests-trap.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
mcount.c Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
memchr.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
memcmp.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
memcpy.S aarch64: Increase small and medium cases for __memcpy_generic 2019-11-12 17:08:18 +00:00
memmove.S
memset-reg.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
memset.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
memusage.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
preconfigure
rawmemchr.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
setjmp.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
sfp-machine.h Break more lines before not after operators. 2019-02-25 13:19:19 +00:00
sotruss-lib.c Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
stackinfo.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
start.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
stpcpy.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
strchr.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
strchrnul.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
strcmp.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
strcpy.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
string_private.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
strlen.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
strncmp.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
strnlen.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
strrchr.S Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
sysdep.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
tls-macros.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
tlsdesc.c Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
tlsdesc.sym
tst-audit.h Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
tst-ifunc-arg-1.c Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
tst-ifunc-arg-2.c Prefer https to http for gnu.org and fsf.org URLs 2019-09-07 02:43:31 -07:00
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