benchtests/Makefile

   1 # Copyright (C) 2013-2014 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 exp2 log log2 modf pow \
  24          rint sin sincos sinh sqrt tan tanh
  25
  26 # String function benchmarks.
  27 string-bench := bcopy bzero memccpy memchr memcmp memcpy memmem memmove \
  28                 mempcpy memset rawmemchr stpcpy stpncpy strcasecmp strcasestr \
  29                 strcat strchr strchrnul strcmp strcpy strcspn strlen \
  30                 strncasecmp strncat strncmp strncpy strnlen strpbrk strrchr \
  31                 strspn strstr strcpy_chk stpcpy_chk memrchr strsep strtok
  32 string-bench-all := $(string-bench)
  33
  34 stdlib-bench := strtod
  35
  36 benchset := $(string-bench-all) $(stdlib-bench)
  37
  38 LDLIBS-bench-acos = -lm
  39 LDLIBS-bench-acosh = -lm
  40 LDLIBS-bench-asin = -lm
  41 LDLIBS-bench-asinh = -lm
  42 LDLIBS-bench-atan = -lm
  43 LDLIBS-bench-atanh = -lm
  44 LDLIBS-bench-cos = -lm
  45 LDLIBS-bench-cosh = -lm
  46 LDLIBS-bench-exp = -lm
  47 LDLIBS-bench-exp2 = -lm
  48 LDLIBS-bench-log = -lm
  49 LDLIBS-bench-log2 = -lm
  50 LDLIBS-bench-pow = -lm
  51 LDLIBS-bench-rint = -lm
  52 LDLIBS-bench-sin = -lm
  53 LDLIBS-bench-sinh = -lm
  54 LDLIBS-bench-sqrt = -lm
  55 LDLIBS-bench-tan = -lm
  56 LDLIBS-bench-tanh = -lm
  57 LDLIBS-bench-sincos = -lm
  58
  59 \f
  60
  61 # Rules to build and execute the benchmarks.  Do not put any benchmark
  62 # parameters beyond this point.
  63
  64 # We don't want the benchmark programs to run in parallel since that could
  65 # affect their performance.
  66 .NOTPARALLEL:
  67
  68 include ../Makeconfig
  69 include ../Rules
  70
  71 binaries-bench := $(addprefix $(objpfx)bench-,$(bench))
  72 binaries-benchset := $(addprefix $(objpfx)bench-,$(benchset))
  73
  74 # The default duration: 10 seconds.
  75 ifndef BENCH_DURATION
  76 BENCH_DURATION := 10
  77 endif
  78
  79 CPPFLAGS-nonlib += -DDURATION=$(BENCH_DURATION)
  80
  81 # Use clock_gettime to measure performance of functions.  The default is to use
  82 # HP_TIMING if it is available.
  83 ifdef USE_CLOCK_GETTIME
  84 CPPFLAGS-nonlib += -DUSE_CLOCK_GETTIME
  85 endif
  86
  87 # This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
  88 # for all these modules.
  89 cpp-srcs-left := $(binaries-benchset:=.c) $(binaries-bench:=.c)
  90 lib := nonlib
  91 include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
  92
  93 bench-deps := bench-skeleton.c bench-timing.h Makefile
  94
  95 run-bench = $(test-wrapper-env) \
  96             GCONV_PATH=$(common-objpfx)iconvdata LC_ALL=C \
  97             $($*-ENV) $(rtld-prefix) $${run}
  98
  99 bench-clean:
 100         rm -f $(binaries-bench) $(addsuffix .o,$(binaries-bench))
 101         rm -f $(binaries-benchset) $(addsuffix .o,$(binaries-benchset))
 102
 103 bench: bench-set bench-func
 104
 105 bench-set: $(binaries-benchset)
 106         for run in $^; do \
 107           echo "Running $${run}"; \
 108           $(run-bench) > $${run}.out; \
 109         done
 110
 111 bench-func: $(binaries-bench)
 112         { for run in $^; do \
 113           echo "Running $${run}" >&2; \
 114           $(run-bench); \
 115         done; } > $(objpfx)bench.out-tmp; \
 116         if [ -f $(objpfx)bench.out ]; then \
 117           mv -f $(objpfx)bench.out $(objpfx)bench.out.old; \
 118         fi; \
 119         mv -f $(objpfx)bench.out-tmp $(objpfx)bench.out
 120
 121 $(binaries-bench) $(binaries-benchset): %: %.o \
 122   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 123   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 124         $(+link)
 125
 126 $(objpfx)bench-%.c: %-inputs $(bench-deps)
 127         { if [ -n "$($*-INCLUDE)" ]; then \
 128           cat $($*-INCLUDE); \
 129         fi; \
 130         $(..)scripts/bench.pl $(patsubst %-inputs,%,$<); } > $@-tmp
 131         mv -f $@-tmp $@