cddl/contrib/dtracetoolkit/Php/php_calldist.d

   1 #!/usr/sbin/dtrace -Zs
   2 /*
   3  * php_calldist.d - measure PHP elapsed times for functions.
   4  *                  Written for the PHP DTrace provider.
   5  *
   6  * $Id: php_calldist.d 53 2007-09-24 04:58:38Z brendan $
   7  *
   8  * This traces PHP activity from all programs running on the system with
   9  * PHP provider support.
  10  *
  11  * USAGE: php_calldist.d        # hit Ctrl-C to end
  12  *
  13  * This script prints distribution plots of elapsed time for PHP
  14  * operations. Use php_calltime.d for summary reports.
  15  *
  16  * FIELDS:
  17  *              1               Filename of the PHP program
  18  *              2               Type of call (func)
  19  *              3               Name of call
  20  *
  21  * Filename and function names are printed if available.
  22  *
  23  * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
  24  *
  25  * CDDL HEADER START
  26  *
  27  *  The contents of this file are subject to the terms of the
  28  *  Common Development and Distribution License, Version 1.0 only
  29  *  (the "License").  You may not use this file except in compliance
  30  *  with the License.
  31  *
  32  *  You can obtain a copy of the license at Docs/cddl1.txt
  33  *  or http://www.opensolaris.org/os/licensing.
  34  *  See the License for the specific language governing permissions
  35  *  and limitations under the License.
  36  *
  37  * CDDL HEADER END
  38  *
  39  * 09-Sep-2007  Brendan Gregg   Created this.
  40  */
  41
  42 #pragma D option quiet
  43
  44 dtrace:::BEGIN
  45 {
  46         printf("Tracing... Hit Ctrl-C to end.\n");
  47 }
  48
  49 php*:::function-entry
  50 /arg0/
  51 {
  52         self->depth++;
  53         self->exclude[self->depth] = 0;
  54         self->function[self->depth] = timestamp;
  55 }
  56
  57 php*:::function-return
  58 /arg0 && self->function[self->depth]/
  59 {
  60         this->elapsed_incl = timestamp - self->function[self->depth];
  61         this->elapsed_excl = this->elapsed_incl - self->exclude[self->depth];
  62         self->function[self->depth] = 0;
  63         self->exclude[self->depth] = 0;
  64         this->file = basename(copyinstr(arg1));
  65         this->name = copyinstr(arg0);
  66
  67         @types_incl[this->file, "func", this->name] =
  68             quantize(this->elapsed_incl / 1000);
  69         @types_excl[this->file, "func", this->name] =
  70             quantize(this->elapsed_excl / 1000);
  71
  72         self->depth--;
  73         self->exclude[self->depth] += this->elapsed_incl;
  74 }
  75
  76 dtrace:::END
  77 {
  78         printf("\nExclusive function elapsed times (us),\n");
  79         printa("   %s, %s, %s %@d\n", @types_excl);
  80
  81         printf("\nInclusive function elapsed times (us),\n");
  82         printa("   %s, %s, %s %@d\n", @types_incl);
  83 }