rb_flow.d revision 235368
1235368Sgnn#!/usr/sbin/dtrace -Zs 2235368Sgnn/* 3235368Sgnn * rb_flow.d - snoop Ruby execution showing method flow using DTrace. 4235368Sgnn * Written for the Ruby DTrace provider. 5235368Sgnn * 6235368Sgnn * $Id: rb_flow.d 41 2007-09-17 02:20:10Z brendan $ 7235368Sgnn * 8235368Sgnn * This traces activity from all Ruby programs on the system that are 9235368Sgnn * running with Ruby provider support. 10235368Sgnn * 11235368Sgnn * USAGE: rb_flow.d # hit Ctrl-C to end 12235368Sgnn * 13235368Sgnn * FIELDS: 14235368Sgnn * C CPU-id 15235368Sgnn * TIME(us) Time since boot, us 16235368Sgnn * FILE Filename that this method belongs to 17235368Sgnn * CLASS::METHOD Ruby classname and method 18235368Sgnn * 19235368Sgnn * LEGEND: 20235368Sgnn * -> method entry 21235368Sgnn * <- method return 22235368Sgnn * 23235368Sgnn * Filename and method names are printed if available. 24235368Sgnn * 25235368Sgnn * WARNING: Watch the first column carefully, it prints the CPU-id. If it 26235368Sgnn * changes, then it is very likely that the output has been shuffled. 27235368Sgnn * 28235368Sgnn * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. 29235368Sgnn * 30235368Sgnn * CDDL HEADER START 31235368Sgnn * 32235368Sgnn * The contents of this file are subject to the terms of the 33235368Sgnn * Common Development and Distribution License, Version 1.0 only 34235368Sgnn * (the "License"). You may not use this file except in compliance 35235368Sgnn * with the License. 36235368Sgnn * 37235368Sgnn * You can obtain a copy of the license at Docs/cddl1.txt 38235368Sgnn * or http://www.opensolaris.org/os/licensing. 39235368Sgnn * See the License for the specific language governing permissions 40235368Sgnn * and limitations under the License. 41235368Sgnn * 42235368Sgnn * CDDL HEADER END 43235368Sgnn * 44235368Sgnn * 09-Sep-2007 Brendan Gregg Created this. 45235368Sgnn */ 46235368Sgnn 47235368Sgnn#pragma D option quiet 48235368Sgnn#pragma D option switchrate=10 49235368Sgnn 50235368Sgnnself int depth; 51235368Sgnn 52235368Sgnndtrace:::BEGIN 53235368Sgnn{ 54235368Sgnn printf("%3s %-16s %-22s -- %s\n", "C", "TIME(us)", "FILE", 55235368Sgnn "CLASS::METHOD"); 56235368Sgnn} 57235368Sgnn 58235368Sgnnruby*:::function-entry 59235368Sgnn{ 60235368Sgnn printf("%3d %-16d %-22s %*s-> %s::%s\n", cpu, timestamp / 1000, 61235368Sgnn basename(copyinstr(arg2)), self->depth * 2, "", copyinstr(arg0), 62235368Sgnn copyinstr(arg1)); 63235368Sgnn self->depth++; 64235368Sgnn} 65235368Sgnn 66235368Sgnnruby*:::function-return 67235368Sgnn{ 68235368Sgnn self->depth -= self->depth > 0 ? 1 : 0; 69235368Sgnn printf("%3d %-16d %-22s %*s<- %s::%s\n", cpu, timestamp / 1000, 70235368Sgnn basename(copyinstr(arg2)), self->depth * 2, "", copyinstr(arg0), 71235368Sgnn copyinstr(arg1)); 72235368Sgnn} 73