usr/src/cmd/dtrace/demo/agg/normalize.d

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma D option quiet
  28
  29 BEGIN
  30 {
  31         /*
  32          * Get the start time, in nanoseconds.
  33          */
  34         start = timestamp;
  35 }
  36
  37 syscall:::entry
  38 {
  39         @func[execname] = count();
  40 }
  41
  42 END
  43 {
  44         /*
  45          * Normalize the aggregation based on the number of seconds we have
  46          * been running.  (There are 1,000,000,000 nanoseconds in one second.)
  47          */
  48         normalize(@func, (timestamp - start) / 1000000000);
  49 }