support PERF_TYPE_{HARDWARE|HW_CACHE} in perf_event_open

refs #829

test/perf_event/perf_test.c

@@ -0,0 +1,82 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <langinfo.h>
+#include <locale.h>
+#include <sys/mman.h>
+
+#include "perftool.h"
+
+void
+usage()
+{
+	printf("Usage: perf_test mode cntr_num [<type> <config>]...\n");
+	exit(1);
+}
+
+int
+main(int argc, char** argv)
+{
+	long fds[PERF_CNTR_NUM];
+	long long counts[PERF_CNTR_NUM];
+	int types[PERF_CNTR_NUM];
+	int configs[PERF_CNTR_NUM];
+
+	int cntr_num;
+	int mode;
+	int i;
+
+	if (argc < 3) {
+		printf("ERROR: Too few arguments.\n");
+		usage();
+	}
+	
+	mode = atoi(argv[1]);
+	cntr_num = atoi(argv[2]);
+
+	/* perse args */
+	if (argc < cntr_num * 2 + 2) {
+		printf("ERROR: Too few arguments.\n");
+		usage();
+	}
+
+	for (i = 0; i < cntr_num; i++) {
+		types[i] = atoi(argv[i * 2 + 3]);
+		configs[i] = atoi(argv[i * 2 + 4]);
+	}
+
+	/* perf_event_open */
+	for (i = 0; i < cntr_num; i++) {
+		fds[i] = pe_opener(-1, mode, types[i], configs[i]);
+	}
+
+
+	/* perf_start */
+	for (i = 0; i < cntr_num; i++) {
+		PERF_BEGIN(fds[i]);
+	}
+
+	memory_task();
+	calc_task();
+
+	/* perf_end and read */
+	for (i = 0; i < cntr_num; i++) {
+		PERF_END(fds[i]);
+		PERF_READ(fds[i], counts[i]);
+		close(fds[i]);
+	}
+
+	/* print result */
+	for (i = 0; i < cntr_num; i++) {
+		if (types[i] == PERF_TYPE_HARDWARE) {
+			printf("%s,%ld\n", hw_event_names[configs[i]], counts[i]);
+		}
+		else if (types[i] == PERF_TYPE_HW_CACHE) {
+			printf("%s_%s_%s,%ld\n",
+			        id_names[(configs[i] >> 0) & 0xff],
+			        op_id_names[(configs[i] >> 8) & 0xff],
+			        result_names[(configs[i] >> 16) & 0xff],
+			        counts[i]);
+		}
+	}
+	return 0;
+}