1*9cd928feSAlan Maguire #!/usr/sbin/dtrace -s 2*9cd928feSAlan Maguire /* 3*9cd928feSAlan Maguire * CDDL HEADER START 4*9cd928feSAlan Maguire * 5*9cd928feSAlan Maguire * The contents of this file are subject to the terms of the 6*9cd928feSAlan Maguire * Common Development and Distribution License (the "License"). 7*9cd928feSAlan Maguire * You may not use this file except in compliance with the License. 8*9cd928feSAlan Maguire * 9*9cd928feSAlan Maguire * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*9cd928feSAlan Maguire * or http://www.opensolaris.org/os/licensing. 11*9cd928feSAlan Maguire * See the License for the specific language governing permissions 12*9cd928feSAlan Maguire * and limitations under the License. 13*9cd928feSAlan Maguire * 14*9cd928feSAlan Maguire * When distributing Covered Code, include this CDDL HEADER in each 15*9cd928feSAlan Maguire * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*9cd928feSAlan Maguire * If applicable, add the following below this CDDL HEADER, with the 17*9cd928feSAlan Maguire * fields enclosed by brackets "[]" replaced with your own identifying 18*9cd928feSAlan Maguire * information: Portions Copyright [yyyy] [name of copyright owner] 19*9cd928feSAlan Maguire * 20*9cd928feSAlan Maguire * CDDL HEADER END 21*9cd928feSAlan Maguire */ 22*9cd928feSAlan Maguire /* 23*9cd928feSAlan Maguire * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. 24*9cd928feSAlan Maguire */ 25*9cd928feSAlan Maguire 26*9cd928feSAlan Maguire tcp:::connect-established 27*9cd928feSAlan Maguire { 28*9cd928feSAlan Maguire start[args[1]->cs_cid] = timestamp; 29*9cd928feSAlan Maguire } 30*9cd928feSAlan Maguire 31*9cd928feSAlan Maguire tcp:::receive 32*9cd928feSAlan Maguire /start[args[1]->cs_cid] && (args[2]->ip_plength - args[4]->tcp_offset) > 0/ 33*9cd928feSAlan Maguire { 34*9cd928feSAlan Maguire @latency["1st Byte Latency (ns)", args[2]->ip_saddr] = 35*9cd928feSAlan Maguire quantize(timestamp - start[args[1]->cs_cid]); 36*9cd928feSAlan Maguire start[args[1]->cs_cid] = 0; 37*9cd928feSAlan Maguire } 38