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https://sourceware.org/git/glibc.git
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7a8330c01b
This patch makes the sqrt benchmark use -fno-builtin, as already done for benchmarks of ffs and ffsll, so that it actually benchmarks the glibc function as (presumably) intended even in the presence of the compiler inlining sqrt. Tested for x86_64 and also used for benchmarking my ARM sqrt patch. * benchtests/Makefile (CFLAGS-bench-sqrt.c): New variable.
205 lines
6.5 KiB
Makefile
205 lines
6.5 KiB
Makefile
# Copyright (C) 2013-2016 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <http://www.gnu.org/licenses/>.
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# Makefile for benchmark tests. The only useful target here is `bench`.
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# Add benchmark functions in alphabetical order.
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PYTHON := python
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subdir := benchtests
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include ../Makeconfig
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bench-math := acos acosh asin asinh atan atanh cos cosh exp exp2 log log2 \
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modf pow rint sin sincos sinh sqrt tan tanh
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bench-pthread := pthread_once
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bench-string := ffs ffsll
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bench := $(bench-math) $(bench-pthread) $(bench-string)
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# String function benchmarks.
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string-benchset := bcopy bzero memccpy memchr memcmp memcpy memmem memmove \
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mempcpy memset rawmemchr stpcpy stpncpy strcasecmp strcasestr \
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strcat strchr strchrnul strcmp strcpy strcspn strlen \
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strncasecmp strncat strncmp strncpy strnlen strpbrk strrchr \
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strspn strstr strcpy_chk stpcpy_chk memrchr strsep strtok \
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strcoll memcpy-large memmove-large memset-large
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# Build and run locale-dependent benchmarks only if we're building natively.
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ifeq (no,$(cross-compiling))
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wcsmbs-benchset := wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat \
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wcscmp wcsncmp wcschr wcschrnul wcsrchr wcsspn wcspbrk wcscspn \
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wmemchr wmemset wmemcmp
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else
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wcsmbs-benchset :=
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endif
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string-benchset-all := $(string-benchset) ${wcsmbs-benchset}
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ifeq (no,$(cross-compiling))
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# We have to generate locales
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LOCALES := en_US.UTF-8 tr_TR.UTF-8 cs_CZ.UTF-8 fa_IR.UTF-8 fr_FR.UTF-8 \
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ja_JP.UTF-8 si_LK.UTF-8 en_GB.UTF-8 vi_VN.UTF-8 ar_SA.UTF-8 \
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da_DK.UTF-8 pl_PL.UTF-8 pt_PT.UTF-8 el_GR.UTF-8 ru_RU.UTF-8 \
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he_IL.UTF-8 is_IS.UTF-8 es_ES.UTF-8 hi_IN.UTF-8 sv_SE.UTF-8 \
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hu_HU.UTF-8 it_IT.UTF-8 sr_RS.UTF-8 zh_CN.UTF-8
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include ../gen-locales.mk
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endif
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stdlib-benchset := strtod
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stdio-common-benchset := sprintf
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math-benchset := math-inlines
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benchset := $(string-benchset-all) $(stdlib-benchset) $(stdio-common-benchset) \
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$(math-benchset)
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CFLAGS-bench-ffs.c += -fno-builtin
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CFLAGS-bench-ffsll.c += -fno-builtin
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CFLAGS-bench-sqrt.c += -fno-builtin
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bench-malloc := malloc-thread
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$(addprefix $(objpfx)bench-,$(bench-math)): $(libm)
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$(addprefix $(objpfx)bench-,$(math-benchset)): $(libm)
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$(addprefix $(objpfx)bench-,$(bench-pthread)): $(shared-thread-library)
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$(objpfx)bench-malloc-thread: $(shared-thread-library)
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# Rules to build and execute the benchmarks. Do not put any benchmark
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# parameters beyond this point.
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# We don't want the benchmark programs to run in parallel since that could
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# affect their performance.
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.NOTPARALLEL:
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include ../Rules
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binaries-bench := $(addprefix $(objpfx)bench-,$(bench))
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binaries-benchset := $(addprefix $(objpfx)bench-,$(benchset))
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binaries-bench-malloc := $(addprefix $(objpfx)bench-,$(bench-malloc))
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# The default duration: 10 seconds.
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ifndef BENCH_DURATION
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BENCH_DURATION := 10
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endif
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CPPFLAGS-nonlib += -DDURATION=$(BENCH_DURATION)
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# Use clock_gettime to measure performance of functions. The default is to use
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# HP_TIMING if it is available.
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ifdef USE_CLOCK_GETTIME
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CPPFLAGS-nonlib += -DUSE_CLOCK_GETTIME
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endif
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DETAILED_OPT :=
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ifdef DETAILED
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DETAILED_OPT := -d
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endif
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# This makes sure CPPFLAGS-nonlib and CFLAGS-nonlib are passed
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# for all these modules.
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cpp-srcs-left := $(binaries-benchset:=.c) $(binaries-bench:=.c) \
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$(binaries-bench-malloc:=.c)
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lib := nonlib
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include $(patsubst %,$(..)cppflags-iterator.mk,$(cpp-srcs-left))
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bench-extra-objs = json-lib.o
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extra-objs += $(bench-extra-objs)
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bench-deps := bench-skeleton.c bench-timing.h Makefile
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run-bench = $(test-wrapper-env) \
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$(run-program-env) \
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$($*-ENV) $(test-via-rtld-prefix) $${run}
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timing-type := $(objpfx)bench-timing-type
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bench-clean:
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rm -f $(binaries-bench) $(addsuffix .o,$(binaries-bench))
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rm -f $(binaries-benchset) $(addsuffix .o,$(binaries-benchset))
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rm -f $(binaries-bench-malloc) $(addsuffix .o,$(binaries-bench-malloc))
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rm -f $(timing-type) $(addsuffix .o,$(timing-type))
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rm -f $(addprefix $(objpfx),$(bench-extra-objs))
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bench: bench-build bench-set bench-func bench-malloc
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# Target to only build the benchmark without running it. We generate locales
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# only if we're building natively.
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ifeq (no,$(cross-compiling))
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bench-build: $(gen-locales) $(timing-type) $(binaries-bench) \
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$(binaries-benchset) $(binaries-bench-malloc)
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else
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bench-build: $(timing-type) $(binaries-bench) $(binaries-benchset) \
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$(binaries-bench-malloc)
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endif
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bench-set: $(binaries-benchset)
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for run in $^; do \
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echo "Running $${run}"; \
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$(run-bench) > $${run}.out; \
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done
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bench-malloc: $(binaries-bench-malloc)
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run=$(objpfx)bench-malloc-thread; \
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for thr in 1 8 16 32; do \
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echo "Running $${run} $${thr}"; \
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$(run-bench) $${thr} > $${run}-$${thr}.out; \
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done
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# Build and execute the benchmark functions. This target generates JSON
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# formatted bench.out. Each of the programs produce independent JSON output,
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# so one could even execute them individually and process it using any JSON
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# capable language or tool.
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bench-func: $(binaries-bench)
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{ timing_type=$$($(timing-type)); \
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echo "{\"timing_type\": \"$${timing_type}\","; \
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echo " \"functions\": {"; \
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for run in $^; do \
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if ! [ "x$${run}" = "x$<" ]; then \
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echo ","; \
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fi; \
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echo "Running $${run}" >&2; \
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$(run-bench) $(DETAILED_OPT); \
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done; \
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echo; \
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echo " }"; \
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echo "}"; } > $(objpfx)bench.out-tmp; \
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if [ -f $(objpfx)bench.out ]; then \
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mv -f $(objpfx)bench.out $(objpfx)bench.out.old; \
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fi; \
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mv -f $(objpfx)bench.out-tmp $(objpfx)bench.out
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$(PYTHON) scripts/validate_benchout.py $(objpfx)bench.out \
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scripts/benchout.schema.json
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$(timing-type) $(binaries-bench) $(binaries-benchset) \
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$(binaries-bench-malloc): %: %.o $(objpfx)json-lib.o \
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$(sort $(filter $(common-objpfx)lib%,$(link-libc))) \
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$(addprefix $(csu-objpfx),start.o) $(+preinit) $(+postinit)
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$(+link-tests)
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$(objpfx)bench-%.c: %-inputs $(bench-deps)
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{ if [ -n "$($*-INCLUDE)" ]; then \
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cat $($*-INCLUDE); \
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fi; \
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$(PYTHON) scripts/bench.py $(patsubst %-inputs,%,$<); } > $@-tmp
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mv -f $@-tmp $@
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