Don't call Random.uniform() unnecessarily

--HG-- extra : convert_revision : 82b092391f7c866f33ddb028070181038bdce0f8
2005-11-02 15:29:08 -05:00
parent 36f134786f
commit f0ee50c32f
1 changed files with 5 additions and 3 deletions
--- a/dev/etherlink.cc
+++ b/dev/etherlink.cc
@@ -159,9 +159,11 @@ EtherLink::Link::transmit(PacketPtr pkt)
    DDUMP(EthernetData, pkt->data, pkt->length);

    packet = pkt;
-    Random<Tick> var;
-    Tick delay = (Tick)ceil(((double)pkt->length * ticksPerByte) + 1.0 +
-                            var.uniform(delayVar));
+    Tick delay = (Tick)ceil(((double)pkt->length * ticksPerByte) + 1.0);
+    if (delayVar != 0) {
+        Random<Tick> var;
+        delay +=  var.uniform(delayVar);
+    }
    DPRINTF(Ethernet, "scheduling packet: delay=%d, (rate=%f)\n",
            delay, ticksPerByte);
    doneEvent.schedule(curTick + delay);