1 #!/usr/sbin/dtrace -s 2 /* 3 * putnexts.d - stream putnext() tracing with stacks. Solaris, DTrace. 4 * 5 * This shows who is calling putnext() to who, by listing the destination 6 * queue and the calling stack, by frequency count. This is especially useful 7 * for understanding streams based frameworks, such as areas of the Solaris 8 * TCP/IP stack. 9 * 10 * $Id: putnexts.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ 11 * 12 * USAGE: putnext.d 13 * 14 * BASED ON: /usr/demo/dtrace/putnext.d 15 * 16 * PORTIONS: Copyright (c) 2007 Brendan Gregg. 17 * 18 * CDDL HEADER START 19 * 20 * The contents of this file are subject to the terms of the 21 * Common Development and Distribution License, Version 1.0 only 22 * (the "License"). You may not use this file except in compliance 23 * with the License. 24 * 25 * You can obtain a copy of the license at Docs/cddl1.txt 26 * or http://www.opensolaris.org/os/licensing. 27 * See the License for the specific language governing permissions 28 * and limitations under the License. 29 * 30 * CDDL HEADER END 31 * 32 * 12-Jun-2005 Brendan Gregg Created this. 33 */ 34 35 fbt::putnext:entry 36 { 37 @[stringof(args[0]->q_qinfo->qi_minfo->mi_idname), stack(5)] = count(); 38 } 39