1*c29d5175Schristos #!/usr/sbin/dtrace -Zs 2*c29d5175Schristos /* 3*c29d5175Schristos * js_objcpu.d - measure JavaScript object creation on-CPU time using DTrace. 4*c29d5175Schristos * Written for the JavaScript DTrace provider. 5*c29d5175Schristos * 6*c29d5175Schristos * $Id: js_objcpu.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ 7*c29d5175Schristos * 8*c29d5175Schristos * This traces JavaScript activity from all browsers running on the system 9*c29d5175Schristos * with JavaScript provider support. 10*c29d5175Schristos * 11*c29d5175Schristos * USAGE: js_objcpu.d # hit Ctrl-C to end 12*c29d5175Schristos * 13*c29d5175Schristos * Class names are printed if available. 14*c29d5175Schristos * 15*c29d5175Schristos * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. 16*c29d5175Schristos * 17*c29d5175Schristos * CDDL HEADER START 18*c29d5175Schristos * 19*c29d5175Schristos * The contents of this file are subject to the terms of the 20*c29d5175Schristos * Common Development and Distribution License, Version 1.0 only 21*c29d5175Schristos * (the "License"). You may not use this file except in compliance 22*c29d5175Schristos * with the License. 23*c29d5175Schristos * 24*c29d5175Schristos * You can obtain a copy of the license at Docs/cddl1.txt 25*c29d5175Schristos * or http://www.opensolaris.org/os/licensing. 26*c29d5175Schristos * See the License for the specific language governing permissions 27*c29d5175Schristos * and limitations under the License. 28*c29d5175Schristos * 29*c29d5175Schristos * CDDL HEADER END 30*c29d5175Schristos * 31*c29d5175Schristos * 09-Sep-2007 Brendan Gregg Created this. 32*c29d5175Schristos */ 33*c29d5175Schristos 34*c29d5175Schristos #pragma D option quiet 35*c29d5175Schristos 36*c29d5175Schristos dtrace:::BEGIN 37*c29d5175Schristos { 38*c29d5175Schristos printf("Tracing... Hit Ctrl-C to end.\n"); 39*c29d5175Schristos } 40*c29d5175Schristos 41*c29d5175Schristos javascript*:::object-create-start 42*c29d5175Schristos { 43*c29d5175Schristos self->vstart = vtimestamp; 44*c29d5175Schristos } 45*c29d5175Schristos 46*c29d5175Schristos javascript*:::object-create-done 47*c29d5175Schristos /self->vstart/ 48*c29d5175Schristos { 49*c29d5175Schristos this->oncpu = vtimestamp - self->vstart; 50*c29d5175Schristos @total = sum(this->oncpu); 51*c29d5175Schristos @dist[copyinstr(arg1)] = quantize(this->oncpu / 1000); 52*c29d5175Schristos self->vstart = 0; 53*c29d5175Schristos } 54*c29d5175Schristos 55*c29d5175Schristos dtrace:::END 56*c29d5175Schristos { 57*c29d5175Schristos normalize(@total, 1000000); 58*c29d5175Schristos printa("Total object creation on-CPU time (ms): %@d\n\n", @total); 59*c29d5175Schristos printf("Object creation on-CPU time distributions (us),\n"); 60*c29d5175Schristos printa(@dist); 61*c29d5175Schristos } 62