test: add uti tests

Change-Id: Ib59f1c4dab7cec7e67ba35ec1988f6f968a2deaa

test/uti/mpi/fwq.c

@@ -0,0 +1,38 @@
+#define _GNU_SOURCE         /* See feature_test_macros(7) */
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <sys/syscall.h>   /* For SYS_xxx definitions */
+#include <sched.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <time.h>
+#include "fwq.h"
+
+static double nspw; /* nsec per work */
+
+void fwq_init(void)
+{
+	struct timespec start, end;
+	unsigned long nsec;
+	int i;
+
+	clock_gettime(CLOCK_THREAD_CPUTIME_ID, &start);
+#define N_INIT 10000000
+	bulk_fsw(N_INIT);
+	clock_gettime(CLOCK_THREAD_CPUTIME_ID, &end);
+	nsec = DIFFNSEC(end, start);
+	nspw = nsec / (double)N_INIT;
+}
+
+void fwq(long delay_nsec)
+{
+	if (delay_nsec < 0) {
+		return;
+		//printf("%s: delay_nsec < 0\n", __func__);
+	}
+	bulk_fsw(delay_nsec / nspw);
+}