or the id number (decimal or hex) of a specific visual.
.TP 8
.B \-fps
-Display a running tally of how many frames per second are being rendered.
+Display the current frame rate, CPU load, and polygon count.
.TP 8
.B \-delay \fImicroseconds\fP
-The delay specified by this option affects the speed of the animation (and the
-computation workload on the machine). You can use \fB\-delay 0\fP in
-conjunction with \fB\-fps\fP, and this can be an interesting benchmark of
-your GL performance.
+Per-frame delay.
.SH ENVIRONMENT
.PP
.TP 8