benchtests/Makefile

   1 # Copyright (C) 2013 Free Software Foundation, Inc.
   2 # This file is part of the GNU C Library.
   3
   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.
   8
   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.
  13
  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/>.
  17
  18
  19 # Makefile for benchmark tests.  The only useful target here is `bench`.
  20 # Add benchmark functions in alphabetical order.
  21
  22 subdir := benchtests
  23 bench := acos acosh asin asinh atan atanh cos cosh exp log modf pow rint sin \
  24          sinh tan tanh
  25
  26 # String function benchmarks.
  27 string-bench := memcpy
  28 string-bench-ifunc := $(addsuffix -ifunc, $(string-bench))
  29 string-bench-all := $(string-bench) $(string-bench-ifunc)
  30
  31 benchset := $(string-bench-all)
  32
  33 acos-ARGLIST = double
  34 acos-RET = double
  35 LDFLAGS-bench-acos = -lm
  36
  37 acosh-ARGLIST = double
  38 acosh-RET = double
  39 LDFLAGS-bench-acosh = -lm
  40
  41 asin-ARGLIST = double
  42 asin-RET = double
  43 LDFLAGS-bench-asin = -lm
  44
  45 asinh-ARGLIST = double
  46 asinh-RET = double
  47 LDFLAGS-bench-asinh = -lm
  48
  49 atan-ARGLIST = double
  50 atan-RET = double
  51 LDFLAGS-bench-atan = -lm
  52
  53 atanh-ARGLIST = double
  54 atanh-RET = double
  55 LDFLAGS-bench-atanh = -lm
  56
  57 cos-ARGLIST = double
  58 cos-RET = double
  59 LDFLAGS-bench-cos = -lm
  60
  61 cosh-ARGLIST = double
  62 cosh-RET = double
  63 LDFLAGS-bench-cosh = -lm
  64
  65 exp-ARGLIST = double
  66 exp-RET = double
  67 LDFLAGS-bench-exp = -lm
  68
  69 log-ARGLIST = double
  70 log-RET = double
  71 LDFLAGS-bench-log = -lm
  72
  73 pow-ARGLIST = double:double
  74 pow-RET = double
  75 LDFLAGS-bench-pow = -lm
  76
  77 rint-ARGLIST = double
  78 rint-RET = double
  79 LDFLAGS-bench-rint = -lm
  80
  81 sin-ARGLIST = double
  82 sin-RET = double
  83 LDFLAGS-bench-sin = -lm
  84
  85 sinh-ARGLIST = double
  86 sinh-RET = double
  87 LDFLAGS-bench-sinh = -lm
  88
  89 tan-ARGLIST = double
  90 tan-RET = double
  91 LDFLAGS-bench-tan = -lm
  92
  93 tanh-ARGLIST = double
  94 tanh-RET = double
  95 LDFLAGS-bench-tanh = -lm
  96
  97 \f
  98
  99 # Rules to build and execute the benchmarks.  Do not put any benchmark
 100 # parameters beyond this point.
 101
 102 # We don't want the benchmark programs to run in parallel since that could
 103 # affect their performance.
 104 .NOTPARALLEL:
 105
 106 include ../Makeconfig
 107 include ../Rules
 108
 109 binaries-bench := $(addprefix $(objpfx)bench-,$(bench))
 110 binaries-benchset := $(addprefix $(objpfx)bench-,$(benchset))
 111
 112 # The default duration: 10 seconds.
 113 ifndef BENCH_DURATION
 114 BENCH_DURATION := 10
 115 endif
 116
 117 CPPFLAGS-nonlib += -DDURATION=$(BENCH_DURATION)
 118
 119 # Use clock_gettime to measure performance of functions.  The default is to use
 120 # HP_TIMING if it is available.
 121 ifdef USE_CLOCK_GETTIME
 122 CPPFLAGS-nonlib += -DUSE_CLOCK_GETTIME
 123 endif
 124
 125 # This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
 126 # for all these modules.
 127 cpp-srcs-left := $(binaries-benchset:=.c) $(binaries-bench:=.c)
 128 lib := nonlib
 129 include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
 130
 131 bench-deps := bench-skeleton.c bench-timing.h Makefile
 132
 133 run-bench = $(test-wrapper-env) \
 134             GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \
 135             $($*-ENV) $(rtld-prefix) $${run}
 136
 137 bench-clean:
 138         rm -f $(binaries-bench) $(addsuffix .o,$(binaries-bench))
 139         rm -f $(binaries-benchset) $(addsuffix .o,$(binaries-benchset))
 140
 141 bench: bench-set bench-func
 142
 143 bench-set: $(binaries-benchset)
 144         for run in $^; do \
 145           echo "Running $${run}"; \
 146           $(run-bench) > $${run}.out; \
 147         done
 148
 149 bench-func: $(binaries-bench)
 150         { for run in $^; do \
 151           echo "Running $${run}" >&2; \
 152           $(run-bench); \
 153         done; } > $(objpfx)bench.out-tmp; \
 154         if [ -f $(objpfx)bench.out ]; then \
 155           mv -f $(objpfx)bench.out $(objpfx)bench.out.old; \
 156         fi; \
 157         mv -f $(objpfx)bench.out-tmp $(objpfx)bench.out
 158
 159 $(binaries-bench) $(binaries-benchset): %: %.o \
 160   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 161   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 162         $(+link)
 163
 164 $(objpfx)bench-%.c: %-inputs $(bench-deps)
 165         { if [ -n "$($*-INCLUDE)" ]; then \
 166           cat $($*-INCLUDE); \
 167         fi; \
 168         $(..)scripts/bench.pl $(patsubst %-inputs,%,$<) \
 169           $($*-ARGLIST) $($*-RET); } > $@-tmp
 170         mv -f $@-tmp $@