benchtests/Makefile

   1 # Copyright (C) 2013-2016 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 # Makefile for benchmark tests.  The only useful target here is `bench`.
  19 # Add benchmark functions in alphabetical order.
  20
  21 PYTHON := python
  22
  23 subdir := benchtests
  24
  25 include ../Makeconfig
  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
  28
  29 bench-pthread := pthread_once
  30
  31 bench-string := ffs ffsll
  32
  33 bench := $(bench-math) $(bench-pthread) $(bench-string)
  34
  35 # String function benchmarks.
  36 string-benchset := bcopy bzero memccpy memchr memcmp memcpy memmem memmove \
  37                    mempcpy memset rawmemchr stpcpy stpncpy strcasecmp strcasestr \
  38                    strcat strchr strchrnul strcmp strcpy strcspn strlen \
  39                    strncasecmp strncat strncmp strncpy strnlen strpbrk strrchr \
  40                    strspn strstr strcpy_chk stpcpy_chk memrchr strsep strtok \
  41                    strcoll memcpy-large memmove-large memset-large
  42
  43 # Build and run locale-dependent benchmarks only if we're building natively.
  44 ifeq (no,$(cross-compiling))
  45 wcsmbs-benchset := wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat \
  46                    wcscmp wcsncmp wcschr wcschrnul wcsrchr wcsspn wcspbrk wcscspn \
  47                    wmemchr wmemset wmemcmp
  48 else
  49 wcsmbs-benchset :=
  50 endif
  51
  52 string-benchset-all := $(string-benchset) ${wcsmbs-benchset}
  53
  54 ifeq (no,$(cross-compiling))
  55 # We have to generate locales
  56 LOCALES := en_US.UTF-8 tr_TR.UTF-8 cs_CZ.UTF-8 fa_IR.UTF-8 fr_FR.UTF-8 \
  57            ja_JP.UTF-8 si_LK.UTF-8 en_GB.UTF-8 vi_VN.UTF-8 ar_SA.UTF-8 \
  58            da_DK.UTF-8 pl_PL.UTF-8 pt_PT.UTF-8 el_GR.UTF-8 ru_RU.UTF-8 \
  59            he_IL.UTF-8 is_IS.UTF-8 es_ES.UTF-8 hi_IN.UTF-8 sv_SE.UTF-8 \
  60            hu_HU.UTF-8 it_IT.UTF-8 sr_RS.UTF-8 zh_CN.UTF-8
  61 include ../gen-locales.mk
  62 endif
  63
  64 stdlib-benchset := strtod
  65
  66 stdio-common-benchset := sprintf
  67
  68 math-benchset := math-inlines
  69
  70 benchset := $(string-benchset-all) $(stdlib-benchset) $(stdio-common-benchset) \
  71             $(math-benchset)
  72
  73 CFLAGS-bench-ffs.c += -fno-builtin
  74 CFLAGS-bench-ffsll.c += -fno-builtin
  75 CFLAGS-bench-sqrt.c += -fno-builtin
  76
  77 bench-malloc := malloc-thread
  78
  79 $(addprefix $(objpfx)bench-,$(bench-math)): $(libm)
  80 $(addprefix $(objpfx)bench-,$(math-benchset)): $(libm)
  81 $(addprefix $(objpfx)bench-,$(bench-pthread)): $(shared-thread-library)
  82 $(objpfx)bench-malloc-thread: $(shared-thread-library)
  83
  84 \f
  85
  86 # Rules to build and execute the benchmarks.  Do not put any benchmark
  87 # parameters beyond this point.
  88
  89 # We don't want the benchmark programs to run in parallel since that could
  90 # affect their performance.
  91 .NOTPARALLEL:
  92
  93 include ../Rules
  94
  95 binaries-bench := $(addprefix $(objpfx)bench-,$(bench))
  96 binaries-benchset := $(addprefix $(objpfx)bench-,$(benchset))
  97 binaries-bench-malloc := $(addprefix $(objpfx)bench-,$(bench-malloc))
  98
  99 # The default duration: 10 seconds.
 100 ifndef BENCH_DURATION
 101 BENCH_DURATION := 10
 102 endif
 103
 104 CPPFLAGS-nonlib += -DDURATION=$(BENCH_DURATION)
 105
 106 # Use clock_gettime to measure performance of functions.  The default is to use
 107 # HP_TIMING if it is available.
 108 ifdef USE_CLOCK_GETTIME
 109 CPPFLAGS-nonlib += -DUSE_CLOCK_GETTIME
 110 endif
 111
 112 DETAILED_OPT :=
 113
 114 ifdef DETAILED
 115 DETAILED_OPT := -d
 116 endif
 117
 118 # This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
 119 # for all these modules.
 120 cpp-srcs-left := $(binaries-benchset:=.c) $(binaries-bench:=.c) \
 121                  $(binaries-bench-malloc:=.c)
 122 lib := nonlib
 123 include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
 124
 125 bench-extra-objs = json-lib.o
 126
 127 extra-objs += $(bench-extra-objs)
 128
 129 bench-deps := bench-skeleton.c bench-timing.h Makefile
 130
 131 run-bench = $(test-wrapper-env) \
 132             $(run-program-env) \
 133             $($*-ENV) $(test-via-rtld-prefix) $${run}
 134
 135 timing-type := $(objpfx)bench-timing-type
 136
 137 bench-clean:
 138         rm -f $(binaries-bench) $(addsuffix .o,$(binaries-bench))
 139         rm -f $(binaries-benchset) $(addsuffix .o,$(binaries-benchset))
 140         rm -f $(binaries-bench-malloc) $(addsuffix .o,$(binaries-bench-malloc))
 141         rm -f $(timing-type) $(addsuffix .o,$(timing-type))
 142         rm -f $(addprefix $(objpfx),$(bench-extra-objs))
 143
 144 bench: bench-build bench-set bench-func bench-malloc
 145 # Target to only build the benchmark without running it.  We generate locales
 146 # only if we're building natively.
 147 ifeq (no,$(cross-compiling))
 148 bench-build: $(gen-locales) $(timing-type) $(binaries-bench) \
 149         $(binaries-benchset) $(binaries-bench-malloc)
 150 else
 151 bench-build: $(timing-type) $(binaries-bench) $(binaries-benchset) \
 152         $(binaries-bench-malloc)
 153 endif
 154
 155 bench-set: $(binaries-benchset)
 156         for run in $^; do \
 157           echo "Running $${run}"; \
 158           $(run-bench) > $${run}.out; \
 159         done
 160
 161 bench-malloc: $(binaries-bench-malloc)
 162         run=$(objpfx)bench-malloc-thread; \
 163         for thr in 1 8 16 32; do \
 164           echo "Running $${run} $${thr}"; \
 165           $(run-bench) $${thr} > $${run}-$${thr}.out; \
 166         done
 167
 168 # Build and execute the benchmark functions.  This target generates JSON
 169 # formatted bench.out.  Each of the programs produce independent JSON output,
 170 # so one could even execute them individually and process it using any JSON
 171 # capable language or tool.
 172 bench-func: $(binaries-bench)
 173         { timing_type=$$($(timing-type)); \
 174         echo "{\"timing_type\": \"$${timing_type}\","; \
 175         echo " \"functions\": {"; \
 176         for run in $^; do \
 177           if ! [ "x$${run}" = "x$<" ]; then \
 178             echo ","; \
 179           fi; \
 180           echo "Running $${run}" >&2; \
 181           $(run-bench) $(DETAILED_OPT); \
 182         done; \
 183         echo; \
 184         echo " }"; \
 185         echo "}"; } > $(objpfx)bench.out-tmp; \
 186         if [ -f $(objpfx)bench.out ]; then \
 187           mv -f $(objpfx)bench.out $(objpfx)bench.out.old; \
 188         fi; \
 189         mv -f $(objpfx)bench.out-tmp $(objpfx)bench.out
 190         $(PYTHON) scripts/validate_benchout.py $(objpfx)bench.out \
 191                 scripts/benchout.schema.json
 192
 193 $(timing-type) $(binaries-bench) $(binaries-benchset) \
 194         $(binaries-bench-malloc): %: %.o $(objpfx)json-lib.o \
 195   $(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
 196   $(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
 197         $(+link-tests)
 198
 199 $(objpfx)bench-%.c: %-inputs $(bench-deps)
 200         { if [ -n "$($*-INCLUDE)" ]; then \
 201           cat $($*-INCLUDE); \
 202         fi; \
 203         $(PYTHON) scripts/bench.py $(patsubst %-inputs,%,$<); } > $@-tmp
 204         mv -f $@-tmp $@