Commit f1288bdb authored by Carsten Haitzler's avatar Carsten Haitzler Committed by Arnaldo Carvalho de Melo
Browse files

perf test coresight: Add memcpy thread test tool 



Add test tool to be driven by further test scripts. This is a simple C
based memcpy with threads test to drive from scripts.

Reviewed-by: default avatarJames Clark <james.clark@arm.com>
Signed-off-by: default avatarCarsten Haitzler <carsten.haitzler@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20220909152803.2317006-7-carsten.haitzler@foss.arm.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 6ea586b1

tools/perf/tests/shell/coresight/Makefile

+2 −1
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@@ -5,7 +5,8 @@ include ../../../../../tools/scripts/Makefile.arch 
include ../../../../../tools/scripts/utilities.mak



SUBDIRS = \

	asm_pure_loop

	asm_pure_loop \

	memcpy_thread



all: $(SUBDIRS)

$(SUBDIRS):

tools/perf/tests/shell/coresight/memcpy_thread/.gitignore

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memcpy_thread

tools/perf/tests/shell/coresight/memcpy_thread/Makefile

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# SPDX-License-Identifier: GPL-2.0

# Carsten Haitzler <carsten.haitzler@arm.com>, 2021

include ../Makefile.miniconfig



# Binary to produce

BIN=memcpy_thread

# Any linking/libraries needed for the binary - empty if none needed

LIB=-pthread



all: $(BIN)



$(BIN): $(BIN).c

ifdef CORESIGHT

ifeq ($(ARCH),arm64)

# Build line

	$(Q)$(CC) $(BIN).c -o $(BIN) $(LIB)

endif

endif



install-tests: all

ifdef CORESIGHT

ifeq ($(ARCH),arm64)

# Install the test tool in the right place

	$(call QUIET_INSTALL, tests) \

		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/$(INSTDIR_SUB)/$(BIN)'; \

		$(INSTALL) $(BIN) '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/$(INSTDIR_SUB)/$(BIN)/$(BIN)'

endif

endif



clean:

	$(Q)$(RM) -f $(BIN)



.PHONY: all clean install-tests

tools/perf/tests/shell/coresight/memcpy_thread/memcpy_thread.c

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// SPDX-License-Identifier: GPL-2.0

// Carsten Haitzler <carsten.haitzler@arm.com>, 2021

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <string.h>

#include <pthread.h>



struct args {

	unsigned long loops;

	unsigned long size;

	pthread_t th;

	void *ret;

};



static void *thrfn(void *arg)

{

	struct args *a = arg;

	unsigned long i, len = a->loops;

	unsigned char *src, *dst;



	src = malloc(a->size * 1024);

	dst = malloc(a->size * 1024);

	if ((!src) || (!dst)) {

		printf("ERR: Can't allocate memory\n");

		exit(1);

	}

	for (i = 0; i < len; i++)

		memcpy(dst, src, a->size * 1024);

}



static pthread_t new_thr(void *(*fn) (void *arg), void *arg)

{

	pthread_t t;

	pthread_attr_t attr;



	pthread_attr_init(&attr);

	pthread_create(&t, &attr, fn, arg);

	return t;

}



int main(int argc, char **argv)

{

	unsigned long i, len, size, thr;

	pthread_t threads[256];

	struct args args[256];

	long long v;



	if (argc < 4) {

		printf("ERR: %s [copysize Kb] [numthreads] [numloops (hundreds)]\n", argv[0]);

		exit(1);

	}



	v = atoll(argv[1]);

	if ((v < 1) || (v > (1024 * 1024))) {

		printf("ERR: max memory 1GB (1048576 KB)\n");

		exit(1);

	}

	size = v;

	thr = atol(argv[2]);

	if ((thr < 1) || (thr > 256)) {

		printf("ERR: threads 1-256\n");

		exit(1);

	}

	v = atoll(argv[3]);

	if ((v < 1) || (v > 40000000000ll)) {

		printf("ERR: loops 1-40000000000 (hundreds)\n");

		exit(1);

	}

	len = v * 100;

	for (i = 0; i < thr; i++) {

		args[i].loops = len;

		args[i].size = size;

		args[i].th = new_thr(thrfn, &(args[i]));

	}

	for (i = 0; i < thr; i++)

		pthread_join(args[i].th, &(args[i].ret));

	return 0;

}