3 * sh_cpudist.d - measure Bourne shell on-CPU times for types of operation.
4 * Written for the sh DTrace provider.
6 * $Id: sh_cpudist.d 28 2007-09-13 10:49:37Z brendan $
8 * This traces shell activity from all Bourne shells on the system that are
9 * running with sh provider support.
11 * USAGE: sh_cpudist.d # hit Ctrl-C to end
13 * This script prints distribution plots of on-CPU time for shell
14 * operations. Use sh_cputime.d for summary reports.
17 * 1 Filename of the shell or shellscript
18 * 2 Type of call (func/builtin/cmd)
21 * Filename and call names are printed if available.
23 * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
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
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.
39 * 09-Sep-2007 Brendan Gregg Created this.
42 #pragma D option quiet
46 printf("Tracing... Hit Ctrl-C to end.\n");
52 self->function[self->depth] = vtimestamp;
53 self->exclude[self->depth] = 0;
57 /self->function[self->depth]/
59 this->oncpu_incl = vtimestamp - self->function[self->depth];
60 this->oncpu_excl = this->oncpu_incl - self->exclude[self->depth];
61 self->function[self->depth] = 0;
62 self->exclude[self->depth] = 0;
63 this->file = basename(copyinstr(arg0));
64 this->name = copyinstr(arg1);
66 @types_incl[this->file, "func", this->name] =
67 quantize(this->oncpu_incl / 1000);
68 @types_excl[this->file, "func", this->name] =
69 quantize(this->oncpu_excl / 1000);
72 self->exclude[self->depth] += this->oncpu_incl;
77 self->builtin = vtimestamp;
83 this->oncpu = vtimestamp - self->builtin;
86 @types[basename(copyinstr(arg0)), "builtin", copyinstr(arg1)] =
87 quantize(this->oncpu / 1000);
89 self->exclude[self->depth] += this->oncpu;
94 incmd[pid] = basename(copyinstr(arg0));
95 depth[pid] = self->depth;
106 * Due to thread timing after fork(), this probe can fire before
107 * sh*:::command-entry has, which means we can't predicate this
108 * exec() away just yet. Store the vtimestamp in case it is needed.
110 self->command = vtimestamp;
114 /incmd[ppid] == NULL/
120 /incmd[ppid] != NULL/
122 this->oncpu = vtimestamp - self->command;
125 @types[incmd[ppid], "cmd", execname] = quantize(this->oncpu / 1000);
127 self->exclude[depth[ppid]] += this->oncpu;
134 printf("On-CPU times (us),\n\n");
135 printa(" %s, %s, %s %@d\n", @types);
137 printf("Exclusive function on-CPU times (us),\n\n");
138 printa(" %s, %s, %s %@d\n", @types_excl);
140 printf("Inclusive function on-CPU times (us),\n\n");
141 printa(" %s, %s, %s %@d\n", @types_incl);