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
42 wcsmbs-benchset := wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat \
43 wcscmp wcsncmp wcschr wcschrnul wcsrchr wcsspn wcspbrk wcscspn \
44 wmemchr wmemset wmemcmp
45 string-benchset-all := $(string-benchset) ${wcsmbs-benchset}
47 # We have to generate locales
48 LOCALES := en_US.UTF-8 tr_TR.UTF-8 cs_CZ.UTF-8 fa_IR.UTF-8 fr_FR.UTF-8 \
49 ja_JP.UTF-8 si_LK.UTF-8 en_GB.UTF-8 vi_VN.UTF-8 ar_SA.UTF-8 \
50 da_DK.UTF-8 pl_PL.UTF-8 pt_PT.UTF-8 el_GR.UTF-8 ru_RU.UTF-8 \
51 he_IL.UTF-8 is_IS.UTF-8 es_ES.UTF-8 hi_IN.UTF-8 sv_SE.UTF-8 \
52 hu_HU.UTF-8 it_IT.UTF-8 sr_RS.UTF-8 zh_CN.UTF-8
53 include ../gen-locales.mk
55 stdlib-benchset := strtod
57 stdio-common-benchset := sprintf
59 math-benchset := math-inlines
61 benchset := $(string-benchset-all) $(stdlib-benchset) $(stdio-common-benchset) \
64 CFLAGS-bench-ffs.c += -fno-builtin
65 CFLAGS-bench-ffsll.c += -fno-builtin
67 bench-malloc := malloc-thread
69 $(addprefix $(objpfx)bench-,$(bench-math)): $(libm)
70 $(addprefix $(objpfx)bench-,$(math-benchset)): $(libm)
71 $(addprefix $(objpfx)bench-,$(bench-pthread)): $(shared-thread-library)
72 $(objpfx)bench-malloc-thread: $(shared-thread-library)
76 # Rules to build and execute the benchmarks. Do not put any benchmark
77 # parameters beyond this point.
79 # We don't want the benchmark programs to run in parallel since that could
80 # affect their performance.
85 binaries-bench := $(addprefix $(objpfx)bench-,$(bench))
86 binaries-benchset := $(addprefix $(objpfx)bench-,$(benchset))
87 binaries-bench-malloc := $(addprefix $(objpfx)bench-,$(bench-malloc))
89 # The default duration: 10 seconds.
94 CPPFLAGS-nonlib += -DDURATION=$(BENCH_DURATION)
96 # Use clock_gettime to measure performance of functions. The default is to use
97 # HP_TIMING if it is available.
98 ifdef USE_CLOCK_GETTIME
99 CPPFLAGS-nonlib += -DUSE_CLOCK_GETTIME
108 # This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
109 # for all these modules.
110 cpp-srcs-left := $(binaries-benchset:=.c) $(binaries-bench:=.c) \
111 $(binaries-bench-malloc:=.c)
113 include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
115 extra-objs += json-lib.o
117 bench-deps := bench-skeleton.c bench-timing.h Makefile
119 run-bench = $(test-wrapper-env) \
121 $($*-ENV) $(test-via-rtld-prefix) $${run}
123 timing-type := $(objpfx)bench-timing-type
126 rm -f $(binaries-bench) $(addsuffix .o,$(binaries-bench))
127 rm -f $(binaries-benchset) $(addsuffix .o,$(binaries-benchset))
128 rm -f $(binaries-bench-malloc) $(addsuffix .o,$(binaries-bench-malloc))
129 rm -f $(timing-type) $(addsuffix .o,$(timing-type))
131 bench: $(timing-type) $(gen-locales) bench-set bench-func bench-malloc
133 bench-set: $(binaries-benchset)
135 echo "Running $${run}"; \
136 $(run-bench) > $${run}.out; \
139 bench-malloc: $(binaries-bench-malloc)
140 run=$(objpfx)bench-malloc-thread; \
141 for thr in 1 8 16 32; do \
142 echo "Running $${run} $${thr}"; \
143 $(run-bench) $${thr} > $${run}-$${thr}.out; \
146 # Build and execute the benchmark functions. This target generates JSON
147 # formatted bench.out. Each of the programs produce independent JSON output,
148 # so one could even execute them individually and process it using any JSON
149 # capable language or tool.
150 bench-func: $(binaries-bench)
151 { timing_type=$$($(timing-type)); \
152 echo "{\"timing_type\": \"$${timing_type}\","; \
153 echo " \"functions\": {"; \
155 if ! [ "x$${run}" = "x$<" ]; then \
158 echo "Running $${run}" >&2; \
159 $(run-bench) $(DETAILED_OPT); \
163 echo "}"; } > $(objpfx)bench.out-tmp; \
164 if [ -f $(objpfx)bench.out ]; then \
165 mv -f $(objpfx)bench.out $(objpfx)bench.out.old; \
167 mv -f $(objpfx)bench.out-tmp $(objpfx)bench.out
168 $(PYTHON) scripts/validate_benchout.py $(objpfx)bench.out \
169 scripts/benchout.schema.json
171 $(timing-type) $(binaries-bench) $(binaries-benchset) \
172 $(binaries-bench-malloc): %: %.o $(objpfx)json-lib.o \
173 $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
174 $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
177 $(objpfx)bench-%.c: %-inputs $(bench-deps)
178 { if [ -n "$($*-INCLUDE)" ]; then \
181 $(PYTHON) scripts/bench.py $(patsubst %-inputs,%,$<); } > $@-tmp