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 42dtrace:::BEGIN 43{ 44 printf("Tracing... Hit Ctrl-C to end.\n"); 45} 46 47sh*:::function-entry 48{ 49 self->depth++; 50 self->function[self->depth] = vtimestamp; 51 self->exclude[self->depth] = 0; 52} 53 54sh*:::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 74sh*:::builtin-entry 75{ 76 self->builtin = vtimestamp; 77} 78 79sh*:::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 95sh*:::command-entry 96{ 97 incmd[pid] = basename(copyinstr(arg0)); 98 depth[pid] = self->depth; 99} 100 101sh*:::command-return 102{ 103 incmd[pid] = 0; 104} 105 106proc:::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 116proc:::exit 117/incmd[ppid] == NULL/ 118{ 119 self->command = 0; 120} 121 122proc:::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 138dtrace:::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} 159