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# Copyright (C) 2013-2017 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <http://www.gnu.org/licenses/>.
# Makefile for benchmark tests. The only useful target here is `bench`.
# Add benchmark functions in alphabetical order.
subdir := benchtests
include ../Makeconfig
bench-math := acos acosh asin asinh atan atanh cos cosh exp exp2 log log2 \
modf pow rint sin sincos sinh sqrt tan tanh fmin fmax fminf \
fmaxf
bench-pthread := pthread_once
bench-string := ffs ffsll
bench := $(bench-math) $(bench-pthread) $(bench-string)
# String function benchmarks.
string-benchset := bcopy bzero memccpy memchr memcmp memcpy memmem memmove \
mempcpy memset rawmemchr stpcpy stpncpy strcasecmp strcasestr \
strcat strchr strchrnul strcmp strcpy strcspn strlen \
strncasecmp strncat strncmp strncpy strnlen strpbrk strrchr \
strspn strstr strcpy_chk stpcpy_chk memrchr strsep strtok \
strcoll memcpy-large memmove-large memset-large
# Build and run locale-dependent benchmarks only if we're building natively.
ifeq (no,$(cross-compiling))
wcsmbs-benchset := wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat \
wcscmp wcsncmp wcschr wcschrnul wcsrchr wcsspn wcspbrk wcscspn \
wmemchr wmemset wmemcmp
else
wcsmbs-benchset :=
endif
string-benchset-all := $(string-benchset) ${wcsmbs-benchset}
ifeq (no,$(cross-compiling))
# We have to generate locales
LOCALES := en_US.UTF-8 tr_TR.UTF-8 cs_CZ.UTF-8 fa_IR.UTF-8 fr_FR.UTF-8 \
ja_JP.UTF-8 si_LK.UTF-8 en_GB.UTF-8 vi_VN.UTF-8 ar_SA.UTF-8 \
da_DK.UTF-8 pl_PL.UTF-8 pt_PT.UTF-8 el_GR.UTF-8 ru_RU.UTF-8 \
he_IL.UTF-8 is_IS.UTF-8 es_ES.UTF-8 hi_IN.UTF-8 sv_SE.UTF-8 \
hu_HU.UTF-8 it_IT.UTF-8 sr_RS.UTF-8 zh_CN.UTF-8
include ../gen-locales.mk
endif
stdlib-benchset := strtod
stdio-common-benchset := sprintf
math-benchset := math-inlines
benchset := $(string-benchset-all) $(stdlib-benchset) $(stdio-common-benchset) \
$(math-benchset)
CFLAGS-bench-ffs.c += -fno-builtin
CFLAGS-bench-ffsll.c += -fno-builtin
CFLAGS-bench-sqrt.c += -fno-builtin
CFLAGS-bench-fmin.c += -fno-builtin
CFLAGS-bench-fminf.c += -fno-builtin
CFLAGS-bench-fmax.c += -fno-builtin
CFLAGS-bench-fmaxf.c += -fno-builtin
bench-malloc := malloc-thread
$(addprefix $(objpfx)bench-,$(bench-math)): $(libm)
$(addprefix $(objpfx)bench-,$(math-benchset)): $(libm)
$(addprefix $(objpfx)bench-,$(bench-pthread)): $(shared-thread-library)
$(objpfx)bench-malloc-thread: $(shared-thread-library)
# Rules to build and execute the benchmarks. Do not put any benchmark
# parameters beyond this point.
# We don't want the benchmark programs to run in parallel since that could
# affect their performance.
.NOTPARALLEL:
include ../Rules
binaries-bench := $(addprefix $(objpfx)bench-,$(bench))
binaries-benchset := $(addprefix $(objpfx)bench-,$(benchset))
binaries-bench-malloc := $(addprefix $(objpfx)bench-,$(bench-malloc))
# The default duration: 10 seconds.
ifndef BENCH_DURATION
BENCH_DURATION := 10
endif
CPPFLAGS-nonlib += -DDURATION=$(BENCH_DURATION)
# Use clock_gettime to measure performance of functions. The default is to use
# HP_TIMING if it is available.
ifdef USE_CLOCK_GETTIME
CPPFLAGS-nonlib += -DUSE_CLOCK_GETTIME
endif
DETAILED_OPT :=
ifdef DETAILED
DETAILED_OPT := -d
endif
# This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
# for all these modules.
cpp-srcs-left := $(binaries-benchset:=.c) $(binaries-bench:=.c) \
$(binaries-bench-malloc:=.c)
lib := nonlib
include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
bench-extra-objs = json-lib.o
extra-objs += $(bench-extra-objs)
bench-deps := bench-skeleton.c bench-timing.h Makefile
run-bench = $(test-wrapper-env) \
$(run-program-env) \
$($*-ENV) $(test-via-rtld-prefix) $${run}
timing-type := $(objpfx)bench-timing-type
bench-clean:
rm -f $(binaries-bench) $(addsuffix .o,$(binaries-bench))
rm -f $(binaries-benchset) $(addsuffix .o,$(binaries-benchset))
rm -f $(binaries-bench-malloc) $(addsuffix .o,$(binaries-bench-malloc))
rm -f $(timing-type) $(addsuffix .o,$(timing-type))
rm -f $(addprefix $(objpfx),$(bench-extra-objs))
# Define the bench target only if the target has a usable python installation.
ifdef PYTHON
bench: bench-build bench-set bench-func bench-malloc
else
bench:
@echo "The bench target needs python to run."
@exit 1
endif
# Target to only build the benchmark without running it. We generate locales
# only if we're building natively.
ifeq (no,$(cross-compiling))
bench-build: $(gen-locales) $(timing-type) $(binaries-bench) \
$(binaries-benchset) $(binaries-bench-malloc)
else
bench-build: $(timing-type) $(binaries-bench) $(binaries-benchset) \
$(binaries-bench-malloc)
endif
bench-set: $(binaries-benchset)
for run in $^; do \
echo "Running $${run}"; \
$(run-bench) > $${run}.out; \
done
bench-malloc: $(binaries-bench-malloc)
run=$(objpfx)bench-malloc-thread; \
for thr in 1 8 16 32; do \
echo "Running $${run} $${thr}"; \
$(run-bench) $${thr} > $${run}-$${thr}.out; \
done
# Build and execute the benchmark functions. This target generates JSON
# formatted bench.out. Each of the programs produce independent JSON output,
# so one could even execute them individually and process it using any JSON
# capable language or tool.
bench-func: $(binaries-bench)
{ timing_type=$$($(timing-type)); \
echo "{\"timing_type\": \"$${timing_type}\","; \
echo " \"functions\": {"; \
for run in $^; do \
if ! [ "x$${run}" = "x$<" ]; then \
echo ","; \
fi; \
echo "Running $${run}" >&2; \
$(run-bench) $(DETAILED_OPT); \
done; \
echo; \
echo " }"; \
echo "}"; } > $(objpfx)bench.out-tmp; \
if [ -f $(objpfx)bench.out ]; then \
mv -f $(objpfx)bench.out $(objpfx)bench.out.old; \
fi; \
mv -f $(objpfx)bench.out-tmp $(objpfx)bench.out
$(PYTHON) scripts/validate_benchout.py $(objpfx)bench.out \
scripts/benchout.schema.json
$(timing-type) $(binaries-bench) $(binaries-benchset) \
$(binaries-bench-malloc): %: %.o $(objpfx)json-lib.o \
$(link-extra-libs-tests) \
$(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
$(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
$(+link-tests)
$(objpfx)bench-%.c: %-inputs $(bench-deps)
{ if [ -n "$($*-INCLUDE)" ]; then \
cat $($*-INCLUDE); \
fi; \
$(PYTHON) scripts/bench.py $(patsubst %-inputs,%,$<); } > $@-tmp
mv -f $@-tmp $@
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