1235368Sgnn#!/usr/sbin/dtrace -CZs 2235368Sgnn/* 3235368Sgnn * j_cputime.d - measure Java on-CPU times for different types of operation. 4235368Sgnn * Written for the Java hotspot DTrace provider. 5235368Sgnn * 6235368Sgnn * $Id: j_cputime.d 59 2007-10-03 08:21:58Z brendan $ 7235368Sgnn * 8235368Sgnn * This traces activity from all Java processes on the system with hotspot 9235368Sgnn * provider support (1.6.0). Method calls are only visible when using the 10235368Sgnn * flag "+ExtendedDTraceProbes". eg, java -XX:+ExtendedDTraceProbes classfile 11235368Sgnn * 12235368Sgnn * USAGE: j_cputime.d [top] # hit Ctrl-C to end 13235368Sgnn * 14235368Sgnn * The "top" optional argument will truncate the output for each report 15235368Sgnn * section to that many lines, with a default of 10. 16235368Sgnn * 17235368Sgnn * FIELDS: 18235368Sgnn * PID Process ID 19235368Sgnn * TYPE Type of call (method/gc/total) 20235368Sgnn * NAME Name of call 21235368Sgnn * TOTAL Total on-CPU time for calls (us) 22235368Sgnn * 23235368Sgnn * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. 24235368Sgnn * 25235368Sgnn * CDDL HEADER START 26235368Sgnn * 27235368Sgnn * The contents of this file are subject to the terms of the 28235368Sgnn * Common Development and Distribution License, Version 1.0 only 29235368Sgnn * (the "License"). You may not use this file except in compliance 30235368Sgnn * with the License. 31235368Sgnn * 32235368Sgnn * You can obtain a copy of the license at Docs/cddl1.txt 33235368Sgnn * or http://www.opensolaris.org/os/licensing. 34235368Sgnn * See the License for the specific language governing permissions 35235368Sgnn * and limitations under the License. 36235368Sgnn * 37235368Sgnn * CDDL HEADER END 38235368Sgnn * 39235368Sgnn * 09-Sep-2007 Brendan Gregg Created this. 40235368Sgnn */ 41235368Sgnn 42235368Sgnn#define TOP 10 /* default output truncation */ 43235368Sgnn#define B_FALSE 0 44235368Sgnn 45235368Sgnn#pragma D option quiet 46235368Sgnn#pragma D option defaultargs 47235368Sgnn 48235368Sgnndtrace:::BEGIN 49235368Sgnn{ 50235368Sgnn printf("Tracing... Hit Ctrl-C to end.\n"); 51235368Sgnn top = $1 != 0 ? $1 : TOP; 52235368Sgnn} 53235368Sgnn 54235368Sgnnhotspot*:::method-entry 55235368Sgnn{ 56235368Sgnn self->depth[arg0]++; 57235368Sgnn self->exclude[arg0, self->depth[arg0]] = 0; 58235368Sgnn self->method[arg0, self->depth[arg0]] = vtimestamp; 59235368Sgnn} 60235368Sgnn 61235368Sgnnhotspot*:::method-return 62235368Sgnn/self->method[arg0, self->depth[arg0]]/ 63235368Sgnn{ 64235368Sgnn this->oncpu_incl = vtimestamp - self->method[arg0, self->depth[arg0]]; 65235368Sgnn this->oncpu_excl = this->oncpu_incl - 66235368Sgnn self->exclude[arg0, self->depth[arg0]]; 67235368Sgnn self->method[arg0, self->depth[arg0]] = 0; 68235368Sgnn self->exclude[arg0, self->depth[arg0]] = 0; 69235368Sgnn 70235368Sgnn this->class = (char *)copyin(arg1, arg2 + 1); 71235368Sgnn this->class[arg2] = '\0'; 72235368Sgnn this->method = (char *)copyin(arg3, arg4 + 1); 73235368Sgnn this->method[arg4] = '\0'; 74235368Sgnn this->name = strjoin(strjoin(stringof(this->class), "."), 75235368Sgnn stringof(this->method)); 76235368Sgnn 77235368Sgnn @num[pid, "method", this->name] = count(); 78235368Sgnn @num[0, "total", "-"] = count(); 79235368Sgnn @types_incl[pid, "method", this->name] = sum(this->oncpu_incl); 80235368Sgnn @types_excl[pid, "method", this->name] = sum(this->oncpu_excl); 81235368Sgnn @types_excl[0, "total", "-"] = sum(this->oncpu_excl); 82235368Sgnn 83235368Sgnn self->depth[arg0]--; 84235368Sgnn self->exclude[arg0, self->depth[arg0]] += this->oncpu_incl; 85235368Sgnn} 86235368Sgnn 87235368Sgnnhotspot*:::gc-begin 88235368Sgnn{ 89235368Sgnn self->gc = vtimestamp; 90235368Sgnn self->full = (boolean_t)arg0; 91235368Sgnn} 92235368Sgnn 93235368Sgnnhotspot*:::gc-end 94235368Sgnn/self->gc/ 95235368Sgnn{ 96235368Sgnn this->oncpu = vtimestamp - self->gc; 97235368Sgnn self->gc = 0; 98235368Sgnn 99235368Sgnn @num[pid, "gc", self->full == B_FALSE ? "GC" : "Full GC"] = count(); 100235368Sgnn @types[pid, "gc", self->full == B_FALSE ? "GC" : "Full GC"] = 101235368Sgnn sum(this->oncpu); 102235368Sgnn self->full = 0; 103235368Sgnn} 104235368Sgnn 105235368Sgnndtrace:::END 106235368Sgnn{ 107235368Sgnn trunc(@num, top); 108235368Sgnn printf("\nTop %d counts,\n", top); 109235368Sgnn printf(" %6s %-10s %-48s %8s\n", "PID", "TYPE", "NAME", "COUNT"); 110235368Sgnn printa(" %6d %-10s %-48s %@8d\n", @num); 111235368Sgnn 112235368Sgnn trunc(@types, top); 113235368Sgnn normalize(@types, 1000); 114235368Sgnn printf("\nTop %d on-CPU times (us),\n", top); 115235368Sgnn printf(" %6s %-10s %-48s %8s\n", "PID", "TYPE", "NAME", "TOTAL"); 116235368Sgnn printa(" %6d %-10s %-48s %@8d\n", @types); 117235368Sgnn 118235368Sgnn trunc(@types_excl, top); 119235368Sgnn normalize(@types_excl, 1000); 120235368Sgnn printf("\nTop %d exclusive method on-CPU times (us),\n", top); 121235368Sgnn printf(" %6s %-10s %-48s %8s\n", "PID", "TYPE", "NAME", "TOTAL"); 122235368Sgnn printa(" %6d %-10s %-48s %@8d\n", @types_excl); 123235368Sgnn 124235368Sgnn trunc(@types_incl, top); 125235368Sgnn normalize(@types_incl, 1000); 126235368Sgnn printf("\nTop %d inclusive method on-CPU times (us),\n", top); 127235368Sgnn printf(" %6s %-10s %-48s %8s\n", "PID", "TYPE", "NAME", "TOTAL"); 128235368Sgnn printa(" %6d %-10s %-48s %@8d\n", @types_incl); 129235368Sgnn} 130