--- rpmio/rpmsw.c.orig	2008-07-11 18:19:43.000000000 +0100
+++ rpmio/rpmsw.c	2008-07-11 18:19:57.000000000 +0100
@@ -220,7 +220,7 @@
 	rpmsw_type = 1;
 
 	/* Compute cycles/usec */
-	rpmsw_cycles = sum_cycles/sum_usecs;
+	rpmsw_cycles = sum_cycles/(sum_usecs + 1);
 #else
 	rpmsw_type = 0;
 #endif