1 # Copyright (C) 2013-2015 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/>.
19 # Makefile for benchmark tests. The only useful target here is `bench`.
20 # Add benchmark functions in alphabetical order.
25 bench-math := acos acosh asin asinh atan atanh cos cosh exp exp2 ffs ffsll \
26 log log2 modf pow rint sin sincos sinh sqrt tan tanh
28 bench-pthread := pthread_once
30 bench := $(bench-math) $(bench-pthread)
32 # String function benchmarks.
33 string-bench := bcopy bzero memccpy memchr memcmp memcpy memmem memmove \
34 mempcpy memset rawmemchr stpcpy stpncpy strcasecmp strcasestr \
35 strcat strchr strchrnul strcmp strcpy strcspn strlen \
36 strncasecmp strncat strncmp strncpy strnlen strpbrk strrchr \
37 strspn strstr strcpy_chk stpcpy_chk memrchr strsep strtok \
39 wcsmbs-bench := wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat \
40 wcscmp wcsncmp wcschr wcschrnul wcsrchr wcsspn wcspbrk wcscspn
41 string-bench-all := $(string-bench) ${wcsmbs-bench}
43 # We have to generate locales
44 LOCALES := en_US.UTF-8 tr_TR.UTF-8 cs_CZ.UTF-8 fa_IR.UTF-8 fr_FR.UTF-8 \
45 ja_JP.UTF-8 si_LK.UTF-8 en_GB.UTF-8 vi_VN.UTF-8 ar_SA.UTF-8 \
46 da_DK.UTF-8 pl_PL.UTF-8 pt_PT.UTF-8 el_GR.UTF-8 ru_RU.UTF-8 \
47 iw_IL.UTF-8 is_IS.UTF-8 es_ES.UTF-8 hi_IN.UTF-8 sv_SE.UTF-8 \
48 hu_HU.UTF-8 it_IT.UTF-8 sr_RS.UTF-8 zh_CN.UTF-8
49 include ../gen-locales.mk
51 stdlib-bench := strtod
53 stdio-common-bench := sprintf
55 benchset := $(string-bench-all) $(stdlib-bench) $(stdio-common-bench)
57 CFLAGS-bench-ffs.c += -fno-builtin
58 CFLAGS-bench-ffsll.c += -fno-builtin
60 bench-malloc := malloc-thread
62 $(addprefix $(objpfx)bench-,$(bench-math)): $(libm)
63 $(addprefix $(objpfx)bench-,$(bench-pthread)): $(shared-thread-library)
64 $(objpfx)bench-malloc-thread: $(shared-thread-library)
68 # Rules to build and execute the benchmarks. Do not put any benchmark
69 # parameters beyond this point.
71 # We don't want the benchmark programs to run in parallel since that could
72 # affect their performance.
77 binaries-bench := $(addprefix $(objpfx)bench-,$(bench))
78 binaries-benchset := $(addprefix $(objpfx)bench-,$(benchset))
79 binaries-bench-malloc := $(addprefix $(objpfx)bench-,$(bench-malloc))
81 # The default duration: 10 seconds.
86 CPPFLAGS-nonlib += -DDURATION=$(BENCH_DURATION)
88 # Use clock_gettime to measure performance of functions. The default is to use
89 # HP_TIMING if it is available.
90 ifdef USE_CLOCK_GETTIME
91 CPPFLAGS-nonlib += -DUSE_CLOCK_GETTIME
100 # This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
101 # for all these modules.
102 cpp-srcs-left := $(binaries-benchset:=.c) $(binaries-bench:=.c) \
103 $(binaries-bench-malloc:=.c)
105 include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
107 extra-objs += json-lib.o
109 bench-deps := bench-skeleton.c bench-timing.h Makefile
111 run-bench = $(test-wrapper-env) \
113 $($*-ENV) $(rtld-prefix) $${run}
115 timing-type := $(objpfx)bench-timing-type
118 rm -f $(binaries-bench) $(addsuffix .o,$(binaries-bench))
119 rm -f $(binaries-benchset) $(addsuffix .o,$(binaries-benchset))
120 rm -f $(binaries-bench-malloc) $(addsuffix .o,$(binaries-bench-malloc))
121 rm -f $(timing-type) $(addsuffix .o,$(timing-type))
123 bench: $(timing-type) $(gen-locales) bench-set bench-func bench-malloc
125 bench-set: $(binaries-benchset)
127 echo "Running $${run}"; \
128 $(run-bench) > $${run}.out; \
131 bench-malloc: $(binaries-bench-malloc)
132 run=$(objpfx)bench-malloc-thread; \
133 for thr in 1 8 16 32; do \
134 echo "Running $${run} $${thr}"; \
135 $(run-bench) $${thr} > $${run}-$${thr}.out; \
138 # Build and execute the benchmark functions. This target generates JSON
139 # formatted bench.out. Each of the programs produce independent JSON output,
140 # so one could even execute them individually and process it using any JSON
141 # capable language or tool.
142 bench-func: $(binaries-bench)
143 { timing_type=$$($(timing-type)); \
144 echo "{\"timing_type\": \"$${timing_type}\","; \
145 echo " \"functions\": {"; \
147 if ! [ "x$${run}" = "x$<" ]; then \
150 echo "Running $${run}" >&2; \
151 $(run-bench) $(DETAILED_OPT); \
155 echo "}"; } > $(objpfx)bench.out-tmp; \
156 if [ -f $(objpfx)bench.out ]; then \
157 mv -f $(objpfx)bench.out $(objpfx)bench.out.old; \
159 mv -f $(objpfx)bench.out-tmp $(objpfx)bench.out
160 scripts/validate_benchout.py $(objpfx)bench.out \
161 scripts/benchout.schema.json
163 $(timing-type) $(binaries-bench) $(binaries-benchset) \
164 $(binaries-bench-malloc): %: %.o $(objpfx)json-lib.o \
165 $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
166 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
169 $(objpfx)bench-%.c: %-inputs $(bench-deps)
170 { if [ -n "$($*-INCLUDE)" ]; then \
173 scripts/bench.py $(patsubst %-inputs,%,$<); } > $@-tmp