--- nono/vm/test_ethernet.cpp	2026/04/29 17:05:37	1.1.1.1
+++ nono/vm/test_ethernet.cpp	2026/04/29 17:06:00	1.1.1.3
@@ -110,7 +110,7 @@ end_perf_func()
 {
 	sw.Stop();
 
-	uint64 usec = sw.Elapsed() / 1000;
+	uint64 usec = nsec_to_usec(sw.Elapsed_nsec());
 	printf("%6.2f times/usec\n", (double)perf_count / usec);
 }
 
@@ -123,8 +123,7 @@ do_perf_mac_old()
 		uint32 u32;
 	};
 
-	memset(&buf, 0, sizeof(buf));
-	MacAddr mac(buf);
+	memset(buf, 0, sizeof(buf));
 	start_perf_func("macaddr.old");
 	while (perf_signaled == 0) {
 		volatile uint32 crc;
@@ -144,7 +143,7 @@ do_perf_mac_new()
 		uint32 u32;
 	};
 
-	memset(&buf, 0, sizeof(buf));
+	memset(buf, 0, sizeof(buf));
 	MacAddr mac(buf);
 	start_perf_func("macaddr.new");
 	while (perf_signaled == 0) {
@@ -165,7 +164,7 @@ do_perf_buf()
 		uint32 u32;
 	};
 
-	memset(&buf, 0, sizeof(buf));
+	memset(buf, 0, sizeof(buf));
 	start_perf_func("1500bytes");
 	while (perf_signaled == 0) {
 		uint32 crc;