1#!/usr/sbin/dtrace -Zs 2/* 3 * js_calldist.d - measure JavaScript elapsed times for types of operation. 4 * Written for the JavaScript DTrace provider. 5 * 6 * $Id: js_calldist.d 63 2007-10-04 04:34:38Z brendan $ 7 * 8 * This traces JavaScript activity from all browsers running on the system with 9 * JavaScript provider support. 10 * 11 * USAGE: js_calldist.d # hit Ctrl-C to end 12 * 13 * FIELDS: 14 * 1 Filename of the JavaScript program 15 * 2 Type of call (func/obj-new) 16 * 3 Name of call 17 * 18 * Filename and function names are printed if available. 19 * 20 * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. 21 * 22 * CDDL HEADER START 23 * 24 * The contents of this file are subject to the terms of the 25 * Common Development and Distribution License, Version 1.0 only 26 * (the "License"). You may not use this file except in compliance 27 * with the License. 28 * 29 * You can obtain a copy of the license at Docs/cddl1.txt 30 * or http://www.opensolaris.org/os/licensing. 31 * See the License for the specific language governing permissions 32 * and limitations under the License. 33 * 34 * CDDL HEADER END 35 * 36 * 09-Sep-2007 Brendan Gregg Created this. 37 */ 38 39#pragma D option quiet 40 41dtrace:::BEGIN 42{ 43 printf("Tracing... Hit Ctrl-C to end.\n"); 44} 45 46javascript*:::function-entry 47{ 48 self->depth++; 49 self->exclude[self->depth] = 0; 50 self->function[self->depth] = timestamp; 51} 52 53javascript*:::function-return 54/self->function[self->depth]/ 55{ 56 this->elapsed_incl = timestamp - self->function[self->depth]; 57 this->elapsed_excl = this->elapsed_incl - self->exclude[self->depth]; 58 self->function[self->depth] = 0; 59 self->exclude[self->depth] = 0; 60 this->file = basename(copyinstr(arg0)); 61 this->name = copyinstr(arg2); 62 63 @types_incl[this->file, "func", this->name] = 64 quantize(this->elapsed_incl / 1000); 65 @types_excl[this->file, "func", this->name] = 66 quantize(this->elapsed_excl / 1000); 67 68 self->depth--; 69 self->exclude[self->depth] += this->elapsed_incl; 70} 71 72javascript*:::object-create-start 73{ 74 self->object = timestamp; 75} 76 77javascript*:::object-create-done 78/self->object/ 79{ 80 this->elapsed = timestamp - self->object; 81 self->object = 0; 82 this->file = basename(copyinstr(arg0)); 83 this->name = copyinstr(arg1); 84 85 @types[this->file, "obj-new", this->name] = 86 quantize(this->elapsed / 1000); 87 88 self->exclude[self->depth] += this->elapsed; 89} 90 91dtrace:::END 92{ 93 printf("\nElapsed times (us),\n"); 94 printa(" %s, %s, %s %@d\n", @types); 95 96 printf("\nExclusive function elapsed times (us),\n"); 97 printa(" %s, %s, %s %@d\n", @types_excl); 98 99 printf("\nInclusive function elapsed times (us),\n"); 100 printa(" %s, %s, %s %@d\n", @types_incl); 101} 102