1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
# Copyright (C) 2013-2014 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 := acos acosh asin asinh atan atanh cos cosh exp exp2 log log2 modf pow \
rint sin sincos sinh sqrt tan tanh
# String function benchmarks.
string-bench := 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
string-bench-all := $(string-bench)
stdlib-bench := strtod
benchset := $(string-bench-all) $(stdlib-bench)
LDLIBS-bench-acos = -lm
LDLIBS-bench-acosh = -lm
LDLIBS-bench-asin = -lm
LDLIBS-bench-asinh = -lm
LDLIBS-bench-atan = -lm
LDLIBS-bench-atanh = -lm
LDLIBS-bench-cos = -lm
LDLIBS-bench-cosh = -lm
LDLIBS-bench-exp = -lm
LDLIBS-bench-exp2 = -lm
LDLIBS-bench-log = -lm
LDLIBS-bench-log2 = -lm
LDLIBS-bench-pow = -lm
LDLIBS-bench-rint = -lm
LDLIBS-bench-sin = -lm
LDLIBS-bench-sinh = -lm
LDLIBS-bench-sqrt = -lm
LDLIBS-bench-tan = -lm
LDLIBS-bench-tanh = -lm
LDLIBS-bench-sincos = -lm
# 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))
# 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
# This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
# for all these modules.
cpp-srcs-left := $(binaries-benchset:=.c) $(binaries-bench:=.c)
lib := nonlib
include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
bench-deps := bench-skeleton.c bench-timing.h Makefile
run-bench = $(test-wrapper-env) \
GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \
$($*-ENV) $(rtld-prefix) $${run}
bench-clean:
rm -f $(binaries-bench) $(addsuffix .o,$(binaries-bench))
rm -f $(binaries-benchset) $(addsuffix .o,$(binaries-benchset))
bench: bench-set bench-func
bench-set: $(binaries-benchset)
for run in $^; do \
echo "Running $${run}"; \
$(run-bench) > $${run}.out; \
done
bench-func: $(binaries-bench)
{ for run in $^; do \
echo "Running $${run}" >&2; \
$(run-bench); \
done; } > $(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
$(binaries-bench) $(binaries-benchset): %: %.o \
$(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
$(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
$(+link)
$(objpfx)bench-%.c: %-inputs $(bench-deps)
{ if [ -n "$($*-INCLUDE)" ]; then \
cat $($*-INCLUDE); \
fi; \
$(..)scripts/bench.py $(patsubst %-inputs,%,$<); } > $@-tmp
mv -f $@-tmp $@
|
