diff --git a/.gitignore b/.gitignore
index d7ae220..53e6214 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@
 *.log
 *.swp
 tags
+cmraw
 cscope.*
 em
 emlink
diff --git a/util/cmraw.c b/util/cmraw.c
new file mode 100644
index 0000000..5d088c6
--- /dev/null
+++ b/util/cmraw.c
@@ -0,0 +1,35 @@
+/* Show approximate minimum clock resolution
+   Derived from the example in the linux man page for clock_gettime() */
+
+#define _XOPEN_SOURCE 600
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <unistd.h>
+
+static void displayClock(clockid_t clock, char *name)
+{
+   struct timespec ts;
+   time_t oldsec;
+   long oldnsec;
+
+   clock_gettime(clock, &ts);
+   oldsec = ts.tv_sec;
+   oldnsec = ts.tv_nsec;
+   while (ts.tv_sec == oldsec && ts.tv_nsec == oldnsec)
+   {
+      if (clock_gettime(clock, &ts) == -1) {
+         perror("clock_gettime");
+         exit(EXIT_FAILURE);
+      }
+   }
+   printf("%-15s: %10ld sec %09ld nsec\n", name,
+      (long) ts.tv_sec - oldsec, ts.tv_nsec - oldnsec);
+}
+
+int main(int argc, char *argv[])
+{
+   displayClock(CLOCK_MONOTONIC_RAW, "CLOCK_MONOTONIC_RAW");
+   exit(0);
+}