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 14 2007-09-11 08:03:35Z brendan $
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
35fbt::putnext:entry
36{
37	@[stringof(args[0]->q_qinfo->qi_minfo->mi_idname), stack(5)] = count();
38}
39