1#!/usr/sbin/dtrace -Zs 2/* 3 * pl_cpudist.d - measure Perl on-CPU times for subroutines. 4 * Written for the Perl DTrace provider. 5 * 6 * $Id: pl_cpudist.d 28 2007-09-13 10:49:37Z brendan $ 7 * 8 * This traces Perl activity from all programs running on the system with 9 * Perl provider support. 10 * 11 * USAGE: pl_cpudist.d # hit Ctrl-C to end 12 * 13 * This script prints distribution plots of elapsed time for Perl subrotines. 14 * Use pl_cputime.d for summary reports. 15 * 16 * FIELDS: 17 * 1 Filename of the Perl program 18 * 2 Type of call (sub) 19 * 3 Name of call 20 * 21 * Filename and subroutine names are printed if available. 22 * 23 * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. 24 * 25 * CDDL HEADER START 26 * 27 * The contents of this file are subject to the terms of the 28 * Common Development and Distribution License, Version 1.0 only 29 * (the "License"). You may not use this file except in compliance 30 * with the License. 31 * 32 * You can obtain a copy of the license at Docs/cddl1.txt 33 * or http://www.opensolaris.org/os/licensing. 34 * See the License for the specific language governing permissions 35 * and limitations under the License. 36 * 37 * CDDL HEADER END 38 * 39 * 09-Sep-2007 Brendan Gregg Created this. 40 */ 41 42#pragma D option quiet 43 44dtrace:::BEGIN 45{ 46 printf("Tracing... Hit Ctrl-C to end.\n"); 47} 48 49perl*:::sub-entry 50{ 51 self->depth++; 52 self->exclude[self->depth] = 0; 53 self->sub[self->depth] = vtimestamp; 54} 55 56perl*:::sub-return 57/self->sub[self->depth]/ 58{ 59 this->oncpu_incl = vtimestamp - self->sub[self->depth]; 60 this->oncpu_excl = this->oncpu_incl - self->exclude[self->depth]; 61 self->sub[self->depth] = 0; 62 self->exclude[self->depth] = 0; 63 this->file = basename(copyinstr(arg1)); 64 this->name = copyinstr(arg0); 65 66 @types_incl[this->file, "sub", this->name] = 67 quantize(this->oncpu_incl / 1000); 68 @types_excl[this->file, "sub", this->name] = 69 quantize(this->oncpu_excl / 1000); 70 71 self->depth--; 72 self->exclude[self->depth] += this->oncpu_incl; 73} 74 75dtrace:::END 76{ 77 printf("\nExclusive subroutine on-CPU times (us),\n"); 78 printa(" %s, %s, %s %@d\n", @types_excl); 79 80 printf("\nInclusive subroutine on-CPU times (us),\n"); 81 printa(" %s, %s, %s %@d\n", @types_incl); 82} 83