#!/usr/sbin/dtrace -qs

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at 
 * http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 * Given the pid.
 * Threads of a process and it's children(s) with 
 * weak/strong/none affinities.
 * ./lgrp_affinity.d <pid>  > log.out
 */

syscall::fork1:return
/
progenyof($1) && pid != $1
/
{
	child_trace[pid] = 1;
}

syscall::vfork:return
/
progenyof($1) && pid != $1
/
{
	child_trace[pid] = 1;
}

syscall::forkall:return
/
progenyof($1) && pid != $1
/
{
	child_trace[pid] = 1;
}

sched:::on-cpu
/
progenyof($1) &&
(pid == $1 || child_trace[pid])
/
{
	this->affinity = curthread->t_lgrp_affinity == NULL ?
		0 : curthread->t_lgrp_affinity[curthread->t_lpl->lpl_lgrpid];
	@lgrpquan[curthread, curthread->t_lpl->lpl_lgrpid] = 
		quantize(this->affinity);
}

END
{
	printa("\n     Thread  0x%p      Home lgrp  %x   has Affinity : %@d\n",
		@lgrpquan);
}