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Add malloc micro benchmark

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Add a malloc micro benchmark to enable accurate testing of the
various paths in malloc and free.  The benchmark does a varying
number of allocations of a given block size, then frees them again.

It tests 3 different scenarios: single-threaded using main arena,
multi-threaded using thread-arena, main arena with SINGLE_THREAD_P
false.

	* benchtests/Makefile: Add malloc-simple benchmark.
	* benchtests/bench-malloc-simple.c: New benchmark.
This commit is contained in:
Wilco Dijkstra 2019-02-14 16:37:11 +00:00
parent 24ca04febe
commit 3904fd85d3
2 changed files with 18 additions and 5 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2019-02-14 Wilco Dijkstra <wdijkstr@arm.com>
* benchtests/Makefile: Add malloc-simple benchmark.
* benchtests/bench-malloc-simple.c: New benchmark.
2019-02-14 Siddhesh Poyarekar <siddhesh@sourceware.org>
* benchtests/bench-memmove.c (do_one_test): Remove unused

14
benchtests/Makefile
View File

@ -90,7 +90,7 @@ CFLAGS-bench-trunc.c += -fno-builtin
CFLAGS-bench-truncf.c += -fno-builtin
ifeq (${BENCHSET},)
bench-malloc := malloc-thread
bench-malloc := malloc-thread malloc-simple
else
bench-malloc := $(filter malloc-%,${BENCHSET})
endif
@ -98,7 +98,7 @@ endif
$(addprefix $(objpfx)bench-,$(bench-math)): $(libm)
$(addprefix $(objpfx)bench-,$(math-benchset)): $(libm)
$(addprefix $(objpfx)bench-,$(bench-pthread)): $(shared-thread-library)
$(objpfx)bench-malloc-thread: $(shared-thread-library)
$(addprefix $(objpfx)bench-,$(bench-malloc)): $(shared-thread-library)
@ -171,7 +171,7 @@ bench-clean:
ifneq ($(strip ${BENCHSET}),)
VALIDBENCHSETNAMES := bench-pthread bench-math bench-string string-benchset \
wcsmbs-benchset stdlib-benchset stdio-common-benchset math-benchset \
malloc-thread
malloc-thread malloc-simple
INVALIDBENCHSETNAMES := $(filter-out ${VALIDBENCHSETNAMES},${BENCHSET})
ifneq (${INVALIDBENCHSETNAMES},)
$(info The following values in BENCHSET are invalid: ${INVALIDBENCHSETNAMES})
@ -200,10 +200,18 @@ bench-set: $(binaries-benchset)
bench-malloc: $(binaries-bench-malloc)
for run in $^; do \
echo "$${run}"; \
if [ `basename $${run}` = "bench-malloc-thread" ]; then \
for thr in 1 8 16 32; do \
echo "Running $${run} $${thr}"; \
$(run-bench) $${thr} > $${run}-$${thr}.out; \
done;\
else \
for thr in 8 16 32 64 128 256 512 1024 2048 4096; do \
echo "Running $${run} $${thr}"; \
$(run-bench) $${thr} > $${run}-$${thr}.out; \
done;\
fi;\
done
# Build and execute the benchmark functions. This target generates JSON