Initial commit of open source Workload Automation.

wlauto/workloads/memcpy/src/build.sh

@@ -0,0 +1,21 @@
+#    Copyright 2013-2015 ARM Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+
+ndk-build
+
+if [[ $? -eq 0 ]]; then
+	cp libs/armeabi/memcpy ..
+fi

wlauto/workloads/memcpy/src/jni/Android.mk

@@ -0,0 +1,11 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := memcopy.c
+
+LOCAL_LD_LIBS := -lrt
+
+LOCAL_MODULE := memcpy
+
+
+include $(BUILD_EXECUTABLE)

wlauto/workloads/memcpy/src/jni/memcopy.c

@@ -0,0 +1,114 @@
+/*    Copyright 2013-2015 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
+
+
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sched.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <pthread.h>
+#include <time.h>
+
+const int MAX_CPUS = 8;
+const int DEFAULT_ITERATIONS = 1000;
+const int DEFAULT_BUFFER_SIZE = 1024 * 1024 * 5;
+
+int set_affinity(size_t cpus_size, int* cpus)
+{
+	int i;
+	int mask = 0;
+
+	for(i = 0; i < cpus_size; ++i)
+	{
+		mask |= 1 << cpus[i];
+	}
+	
+	return syscall(__NR_sched_setaffinity, 0, sizeof(mask), &mask);
+}
+
+int main(int argc, char** argv)
+{
+	int cpus[MAX_CPUS];
+	int next_cpu = 0;
+	int iterations = DEFAULT_ITERATIONS;
+	int buffer_size = DEFAULT_BUFFER_SIZE;
+	
+	int c;
+	while ((c = getopt(argc, argv, "i:c:s:")) != -1)
+		switch (c)
+		{
+		case 'c':
+			cpus[next_cpu++] = atoi(optarg);
+			if (next_cpu == MAX_CPUS)
+			{
+				fprintf(stderr, "Max CPUs exceeded.");
+				abort();
+			}
+			break;
+		case 'i':
+			iterations = atoi(optarg);
+			break;
+		case 's':
+			buffer_size = atoi(optarg);
+			break;
+		default:
+			abort();
+			break;
+		}
+
+	int ret;
+	if (next_cpu != 0)
+		if (ret = set_affinity(next_cpu, cpus))
+		{
+			fprintf(stderr, "sched_setaffinity returnred %i.", ret);
+			abort();
+		}
+	
+	char* source  = malloc(buffer_size);
+	char* dest = malloc(buffer_size);
+
+	struct timespec before, after;
+	if (clock_gettime(CLOCK_MONOTONIC, &before))
+	{
+	 	fprintf(stderr, "Could not get start time.");
+		abort();
+	}
+
+	int i;
+	for (i = 0; i < iterations; ++i)
+	{
+		memcpy(dest, source, buffer_size);
+	}
+
+	if (clock_gettime(CLOCK_MONOTONIC, &after))
+	{
+	 	fprintf(stderr, "Could not get end time.");
+		abort();
+	}
+
+	free(dest);
+	free(source);
+
+	long delta_sec =  (long)(after.tv_sec - before.tv_sec);
+	long delta_nsec = after.tv_nsec - before.tv_nsec;
+	double delta = (double)delta_sec + delta_nsec / 1e9;
+	printf("Total time: %f s\n", delta);
+	printf("Bandwidth: %f MB/s\n", buffer_size / delta * iterations / 1e6);
+
+	return 0;
+}