cddl/contrib/dtracetoolkit/Shell/sh_cputime.d

   1 #!/usr/sbin/dtrace -Zs
   2 /*
   3  * sh_cputime.d - measure Bourne shell on-CPU times for types of operation.
   4  *                Written for the sh DTrace provider.
   5  *
   6  * $Id: sh_cputime.d 46 2007-09-17 10:25:36Z brendan $
   7  *
   8  * This traces shell activity from all Bourne shells on the system that are
   9  * running with sh provider support.
  10  *
  11  * USAGE: sh_cputime.d          # hit Ctrl-C to end
  12  *
  13  * FIELDS:
  14  *              FILE            Filename of the shell or shellscript
  15  *              TYPE            Type of call (func/builtin/cmd/total)
  16  *              NAME            Name of call
  17  *              TOTAL           Total on-CPU time for calls (us)
  18  *
  19  * Filename and call names are printed if available.
  20  *
  21  * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
  22  *
  23  * CDDL HEADER START
  24  *
  25  *  The contents of this file are subject to the terms of the
  26  *  Common Development and Distribution License, Version 1.0 only
  27  *  (the "License").  You may not use this file except in compliance
  28  *  with the License.
  29  *
  30  *  You can obtain a copy of the license at Docs/cddl1.txt
  31  *  or http://www.opensolaris.org/os/licensing.
  32  *  See the License for the specific language governing permissions
  33  *  and limitations under the License.
  34  *
  35  * CDDL HEADER END
  36  *
  37  * 09-Sep-2007  Brendan Gregg   Created this.
  38  */
  39
  40 #pragma D option quiet
  41
  42 dtrace:::BEGIN
  43 {
  44         printf("Tracing... Hit Ctrl-C to end.\n");
  45 }
  46
  47 sh*:::function-entry
  48 {
  49         self->depth++;
  50         self->function[self->depth] = vtimestamp;
  51         self->exclude[self->depth] = 0;
  52 }
  53
  54 sh*:::function-return
  55 /self->function[self->depth]/
  56 {
  57         this->oncpu_incl = vtimestamp - self->function[self->depth];
  58         this->oncpu_excl = this->oncpu_incl - self->exclude[self->depth];
  59         self->function[self->depth] = 0;
  60         self->exclude[self->depth] = 0;
  61         this->file = basename(copyinstr(arg0));
  62         this->name = copyinstr(arg1);
  63
  64         @num[this->file, "func", this->name] = count();
  65         @num["-", "total", "-"] = count();
  66         @types_incl[this->file, "func", this->name] = sum(this->oncpu_incl);
  67         @types_excl[this->file, "func", this->name] = sum(this->oncpu_excl);
  68         @types_excl["-", "total", "-"] = sum(this->oncpu_excl);
  69
  70         self->depth--;
  71         self->exclude[self->depth] += this->oncpu_incl;
  72 }
  73
  74 sh*:::builtin-entry
  75 {
  76         self->builtin = vtimestamp;
  77 }
  78
  79 sh*:::builtin-return
  80 /self->builtin/
  81 {
  82         this->oncpu = vtimestamp - self->builtin;
  83         self->builtin = 0;
  84         this->file = basename(copyinstr(arg0));
  85         this->name = copyinstr(arg1);
  86
  87         @num[this->file, "builtin", this->name] = count();
  88         @num["-", "total", "-"] = count();
  89         @types[this->file, "builtin", this->name] = sum(this->oncpu);
  90         @types["-", "total", "-"] = sum(this->oncpu);
  91
  92         self->exclude[self->depth] += this->oncpu;
  93 }
  94
  95 sh*:::command-entry
  96 {
  97         incmd[pid] = basename(copyinstr(arg0));
  98         depth[pid] = self->depth;
  99 }
 100
 101 sh*:::command-return
 102 {
 103         incmd[pid] = 0;
 104 }
 105
 106 proc:::exec-success
 107 {
 108         /*
 109          * Due to thread timing after fork(), this probe can fire before
 110          * sh*:::command-entry has, which means we can't predicate this
 111          * exec() away just yet. Store the vtimestamp in case it is needed.
 112          */
 113         self->command = vtimestamp;
 114 }
 115
 116 proc:::exit
 117 /incmd[ppid] == NULL/
 118 {
 119         self->command = 0;
 120 }
 121
 122 proc:::exit
 123 /incmd[ppid] != NULL/
 124 {
 125         this->oncpu = vtimestamp - self->command;
 126         self->command = 0;
 127
 128         @num[incmd[ppid], "cmd", execname] = count();
 129         @num["-", "total", "-"] = count();
 130         @types[incmd[ppid], "cmd", execname] = sum(this->oncpu);
 131         @types["-", "total", "-"] = sum(this->oncpu);
 132
 133         self->exclude[depth[ppid]] += this->oncpu;
 134         incmd[ppid] = 0;
 135         depth[ppid] = 0;
 136 }
 137
 138 dtrace:::END
 139 {
 140         printf("\nCounts,\n");
 141         printf("   %-20s %-10s %-32s %8s\n", "FILE", "TYPE", "NAME", "COUNT");
 142         printa("   %-20s %-10s %-32s %@8d\n", @num);
 143
 144         normalize(@types, 1000);
 145         printf("\nOn-CPU times (us),\n");
 146         printf("   %-20s %-10s %-32s %8s\n", "FILE", "TYPE", "NAME", "TOTAL");
 147         printa("   %-20s %-10s %-32s %@8d\n", @types);
 148
 149         normalize(@types_excl, 1000);
 150         printf("\nExclusive function on-CPU times (us),\n");
 151         printf("   %-20s %-10s %-32s %8s\n", "FILE", "TYPE", "NAME", "TOTAL");
 152         printa("   %-20s %-10s %-32s %@8d\n", @types_excl);
 153
 154         normalize(@types_incl, 1000);
 155         printf("\nInclusive function on-CPU times (us),\n");
 156         printf("   %-20s %-10s %-32s %8s\n", "FILE", "TYPE", "NAME", "TOTAL");
 157         printa("   %-20s %-10s %-32s %@8d\n", @types_incl);
 158 }