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usr / src / cddl / contrib / opensolaris / cmd / dtrace / test / tst / common / docsExamples /

📁 ..
📄 badptr.d(1.07 KB)
📄 countdown.d(1.16 KB)
📄 counter.d(1.11 KB)
📄 errorpath.d(1.09 KB)
📄 hello.d(1.07 KB)
📄 kstat.d(1.47 KB)
📄 ksyms.d(1.49 KB)
📄 renormalize.d(1.21 KB)
📄 rtime.d(1.21 KB)
📄 rw.d(1.08 KB)
📄 rwinfo.d(1.81 KB)
📄 rwtime.d(1.25 KB)
📄 specopen.d(1.57 KB)
📄 truss.d(1.25 KB)
📄 trussrw.d(1.26 KB)
📄 userfunc.d(1.2 KB)

Editing: rwinfo.d

/*
 * 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 ident	"%Z%%M%	%I%	%E% SMI"

/*
 * ASSERTION:
 *	Verify doc example 7-1
 *
 * SECTION:
 *	DocExamples/rwinfo
 */

#pragma D option quiet

struct callinfo {
	uint64_t ts;
	uint64_t elapsed;
	uint64_t calls;
	size_t maxbytes;
};

struct callinfo i[string];

syscall::read:entry,
syscall::write:entry
/pid == 100551/
{
	i[probefunc].ts = timestamp;
	i[probefunc].calls++;
	i[probefunc].maxbytes = arg2 > i[probefunc].maxbytes ?
	    arg2 : i[probefunc].maxbytes;
}

syscall::read:return,
syscall::write:return
/i[probefunc].ts != 0 && pid == 100551/
{
	i[probefunc].elapsed += timestamp - i[probefunc].ts;
}

END
{
	printf("      calls  max bytes  elapsed nsecs\n");
	printf("-----  -----  ---------  -------------\n");
	printf("   read %5d  %9d   %d\n", i["read"].calls,
	    i["read"].maxbytes, i["read"].elapsed);
	printf("   write %5d  %9d   %d\n", i["write"].calls,
	    i["write"].maxbytes, i["write"].elapsed);
}

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