tests: print average transfer rate after test

Signed-off-by: Tomasz Grabiec <tgrabiec@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

tests/misc-bdev-write.cc

@@ -80,6 +80,8 @@ int main(int argc, char const *argv[])
     auto test_end = s_clock.now();
     _stat_printer.stop();
 
-    printf("Wrote %.3f MB in %.2f s\n", (float) total / MB, to_seconds(test_end - test_start));
+    auto actual_test_duration = to_seconds(test_end - test_start);
+    printf("Wrote %.3f MB in %.2f s = %.3f Mb/s\n", (float) total / MB, actual_test_duration,
+            (float) total / MB / actual_test_duration);
     return 0;
-}
+}
\ No newline at end of file

tests/misc-fs-stress.cc

@@ -77,7 +77,10 @@ int main(int argc, char const *argv[])
     auto test_end = s_clock.now();
     _stat_printer.stop();
 
-    printf("Wrote %.3f MB in %.2f s\n", (float) total / MB, to_seconds(test_end - test_start));
+    auto actual_test_duration = to_seconds(test_end - test_start);
+    printf("Wrote %.3f MB in %.2f s = %.3f Mb/s\n", (float) total / MB, actual_test_duration,
+        (float)total / MB / actual_test_duration);
+
     printf("\n");
     print_distribution(samples);