view usr/src/cmd/dtrace/demo/io/iotime.d @ 0:c9caec207d52 b86

Initial porting based on b86
author Koji Uno <koji.uno@sun.com>
date Tue, 02 Jun 2009 18:56:50 +0900
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/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or 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 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma D option quiet

BEGIN
{
	printf("%10s %58s %2s %7s\n", "DEVICE", "FILE", "RW", "MS");
}

io:::start
{
	start[args[0]->b_edev, args[0]->b_blkno] = timestamp;
}

io:::done
/start[args[0]->b_edev, args[0]->b_blkno]/
{
	this->elapsed = timestamp - start[args[0]->b_edev, args[0]->b_blkno];
	printf("%10s %58s %2s %3d.%03d\n", args[1]->dev_statname,
	    args[2]->fi_pathname, args[0]->b_flags & B_READ ? "R" : "W",
	    this->elapsed / 1000000, (this->elapsed / 1000) % 1000);
	start[args[0]->b_edev, args[0]->b_blkno] = 0;
}