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30a81dae5b
This improved memcmp provides a fast path for compares up to 16 bytes and then compares 16 bytes at a time, thus optimizing loads from both sources. The glibc memcmp microbenchmark retains performance (with an error of ~1ns) for smaller compare sizes and reduces up to 31% of execution time for compares up to 4K on the APM Mustang. On Qualcomm Falkor this improves to almost 48%, i.e. it is almost 2x improvement for sizes of 2K and above. * sysdeps/aarch64/memcmp.S: Widen comparison to 16 bytes at a time. |
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.. | ||
bits | ||
fpu | ||
multiarch | ||
nptl | ||
soft-fp | ||
__longjmp.S | ||
abort-instr.h | ||
atomic-machine.h | ||
backtrace.c | ||
bsd-_setjmp.S | ||
bsd-setjmp.S | ||
configure | ||
configure.ac | ||
crti.S | ||
crtn.S | ||
dl-irel.h | ||
dl-link.sym | ||
dl-machine.h | ||
dl-sysdep.h | ||
dl-tls.h | ||
dl-tlsdesc.h | ||
dl-tlsdesc.S | ||
dl-trampoline.S | ||
dl-tunables.list | ||
Implies | ||
jmpbuf-offsets.h | ||
jmpbuf-unwind.h | ||
ldsodefs.h | ||
libc-tls.c | ||
libm-test-ulps | ||
libm-test-ulps-name | ||
linkmap.h | ||
machine-gmon.h | ||
Makefile | ||
math-tests.h | ||
mcount.c | ||
memchr.S | ||
memcmp.S | ||
memcpy.S | ||
memmove.S | ||
memset-reg.h | ||
memset.S | ||
memusage.h | ||
preconfigure | ||
rawmemchr.S | ||
setjmp.S | ||
sotruss-lib.c | ||
stackinfo.h | ||
start.S | ||
stpcpy.S | ||
strchr.S | ||
strchrnul.S | ||
strcmp.S | ||
strcpy.S | ||
string_private.h | ||
strlen.S | ||
strncmp.S | ||
strnlen.S | ||
strrchr.S | ||
sysdep.h | ||
tls-macros.h | ||
tlsdesc.c | ||
tlsdesc.sym | ||
tst-audit.h | ||
Versions |