diff --git a/arch/x86/scc/icc.c b/arch/x86/scc/icc.c
index 2bd5141f..065c086f 100644
--- a/arch/x86/scc/icc.c
+++ b/arch/x86/scc/icc.c
@@ -257,7 +257,7 @@ int icc_halt(void)
 	return 0;
 }
 
-#define ROUNDS 100000
+#define ROUNDS 1000
 #define CORE_A 0 		// sender
 #define CORE_B 1		// receiver 
 
@@ -425,7 +425,7 @@ int icc_mail_ping_irq(void)
 
 	kprintf( "timer = %d\n", timer );
 	kprintf( "mail_pingpong needs in average %d nsec (%d ticks)!\n",
-		timer*1000/(2*ROUNDS*533), timer/(2*ROUNDS) );
+		timer*1000/(2*ROUNDS*get_cpu_frequency()), timer/(2*ROUNDS) );
 
 	
 	irq_nested_enable(flags);