1 # Copyright (C) 2013-2016 Free Software Foundation, Inc.
2 # This file is part of the GNU C Library.
4 # The GNU C Library is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU Lesser General Public
6 # License as published by the Free Software Foundation; either
7 # version 2.1 of the License, or (at your option) any later version.
9 # The GNU C Library is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # Lesser General Public License for more details.
14 # You should have received a copy of the GNU Lesser General Public
15 # License along with the GNU C Library; if not, see
16 # <http://www.gnu.org/licenses/>.
18 # Makefile for benchmark tests. The only useful target here is `bench`.
19 # Add benchmark functions in alphabetical order.
26 bench-math := acos acosh asin asinh atan atanh cos cosh exp exp2 log log2 \
27 modf pow rint sin sincos sinh sqrt tan tanh
29 bench-pthread := pthread_once
31 bench-string := ffs ffsll
33 bench := $(bench-math) $(bench-pthread) $(bench-string)
35 # String function benchmarks.
36 string-benchset := bcopy bzero memccpy memchr memcmp memcpy memmem memmove \
37 mempcpy memset rawmemchr stpcpy stpncpy strcasecmp strcasestr \
38 strcat strchr strchrnul strcmp strcpy strcspn strlen \
39 strncasecmp strncat strncmp strncpy strnlen strpbrk strrchr \
40 strspn strstr strcpy_chk stpcpy_chk memrchr strsep strtok \
41 strcoll memcpy-large memmove-large memset-large
43 # Build and run locale-dependent benchmarks only if we're building natively.
44 ifeq (no,$(cross-compiling))
45 wcsmbs-benchset := wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat \
46 wcscmp wcsncmp wcschr wcschrnul wcsrchr wcsspn wcspbrk wcscspn \
47 wmemchr wmemset wmemcmp
52 string-benchset-all := $(string-benchset) ${wcsmbs-benchset}
54 ifeq (no,$(cross-compiling))
55 # We have to generate locales
56 LOCALES := en_US.UTF-8 tr_TR.UTF-8 cs_CZ.UTF-8 fa_IR.UTF-8 fr_FR.UTF-8 \
57 ja_JP.UTF-8 si_LK.UTF-8 en_GB.UTF-8 vi_VN.UTF-8 ar_SA.UTF-8 \
58 da_DK.UTF-8 pl_PL.UTF-8 pt_PT.UTF-8 el_GR.UTF-8 ru_RU.UTF-8 \
59 he_IL.UTF-8 is_IS.UTF-8 es_ES.UTF-8 hi_IN.UTF-8 sv_SE.UTF-8 \
60 hu_HU.UTF-8 it_IT.UTF-8 sr_RS.UTF-8 zh_CN.UTF-8
61 include ../gen-locales.mk
64 stdlib-benchset := strtod
66 stdio-common-benchset := sprintf
68 math-benchset := math-inlines
70 benchset := $(string-benchset-all) $(stdlib-benchset) $(stdio-common-benchset) \
73 CFLAGS-bench-ffs.c += -fno-builtin
74 CFLAGS-bench-ffsll.c += -fno-builtin
75 CFLAGS-bench-sqrt.c += -fno-builtin
77 bench-malloc := malloc-thread
79 $(addprefix $(objpfx)bench-,$(bench-math)): $(libm)
80 $(addprefix $(objpfx)bench-,$(math-benchset)): $(libm)
81 $(addprefix $(objpfx)bench-,$(bench-pthread)): $(shared-thread-library)
82 $(objpfx)bench-malloc-thread: $(shared-thread-library)
86 # Rules to build and execute the benchmarks. Do not put any benchmark
87 # parameters beyond this point.
89 # We don't want the benchmark programs to run in parallel since that could
90 # affect their performance.
95 binaries-bench := $(addprefix $(objpfx)bench-,$(bench))
96 binaries-benchset := $(addprefix $(objpfx)bench-,$(benchset))
97 binaries-bench-malloc := $(addprefix $(objpfx)bench-,$(bench-malloc))
99 # The default duration: 10 seconds.
100 ifndef BENCH_DURATION
104 CPPFLAGS-nonlib += -DDURATION=$(BENCH_DURATION)
106 # Use clock_gettime to measure performance of functions. The default is to use
107 # HP_TIMING if it is available.
108 ifdef USE_CLOCK_GETTIME
109 CPPFLAGS-nonlib += -DUSE_CLOCK_GETTIME
118 # This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
119 # for all these modules.
120 cpp-srcs-left := $(binaries-benchset:=.c) $(binaries-bench:=.c) \
121 $(binaries-bench-malloc:=.c)
123 include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
125 bench-extra-objs = json-lib.o
127 extra-objs += $(bench-extra-objs)
129 bench-deps := bench-skeleton.c bench-timing.h Makefile
131 run-bench = $(test-wrapper-env) \
133 $($*-ENV) $(test-via-rtld-prefix) $${run}
135 timing-type := $(objpfx)bench-timing-type
138 rm -f $(binaries-bench) $(addsuffix .o,$(binaries-bench))
139 rm -f $(binaries-benchset) $(addsuffix .o,$(binaries-benchset))
140 rm -f $(binaries-bench-malloc) $(addsuffix .o,$(binaries-bench-malloc))
141 rm -f $(timing-type) $(addsuffix .o,$(timing-type))
142 rm -f $(addprefix $(objpfx),$(bench-extra-objs))
144 bench: bench-build bench-set bench-func bench-malloc
145 # Target to only build the benchmark without running it. We generate locales
146 # only if we're building natively.
147 ifeq (no,$(cross-compiling))
148 bench-build: $(gen-locales) $(timing-type) $(binaries-bench) \
149 $(binaries-benchset) $(binaries-bench-malloc)
151 bench-build: $(timing-type) $(binaries-bench) $(binaries-benchset) \
152 $(binaries-bench-malloc)
155 bench-set: $(binaries-benchset)
157 echo "Running $${run}"; \
158 $(run-bench) > $${run}.out; \
161 bench-malloc: $(binaries-bench-malloc)
162 run=$(objpfx)bench-malloc-thread; \
163 for thr in 1 8 16 32; do \
164 echo "Running $${run} $${thr}"; \
165 $(run-bench) $${thr} > $${run}-$${thr}.out; \
168 # Build and execute the benchmark functions. This target generates JSON
169 # formatted bench.out. Each of the programs produce independent JSON output,
170 # so one could even execute them individually and process it using any JSON
171 # capable language or tool.
172 bench-func: $(binaries-bench)
173 { timing_type=$$($(timing-type)); \
174 echo "{\"timing_type\": \"$${timing_type}\","; \
175 echo " \"functions\": {"; \
177 if ! [ "x$${run}" = "x$<" ]; then \
180 echo "Running $${run}" >&2; \
181 $(run-bench) $(DETAILED_OPT); \
185 echo "}"; } > $(objpfx)bench.out-tmp; \
186 if [ -f $(objpfx)bench.out ]; then \
187 mv -f $(objpfx)bench.out $(objpfx)bench.out.old; \
189 mv -f $(objpfx)bench.out-tmp $(objpfx)bench.out
190 $(PYTHON) scripts/validate_benchout.py $(objpfx)bench.out \
191 scripts/benchout.schema.json
193 $(timing-type) $(binaries-bench) $(binaries-benchset) \
194 $(binaries-bench-malloc): %: %.o $(objpfx)json-lib.o \
195 $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
196 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
199 $(objpfx)bench-%.c: %-inputs $(bench-deps)
200 { if [ -n "$($*-INCLUDE)" ]; then \
203 $(PYTHON) scripts/bench.py $(patsubst %-inputs,%,$<); } > $@-tmp