#!/usr/sbin/dtrace -Zs /* * pl_flowinfo.d - snoop Perl subroutine flow with info using DTrace. * Written for the Perl DTrace provider. * * $Id: pl_flowinfo.d,v 1.1.1.1 2015/09/30 22:01:07 christos Exp $ * * This traces activity from all Perl programs on the system that are * running with Perl provider support. * * USAGE: pl_flowinfo.d # hit Ctrl-C to end * * FIELDS: * C CPU-id * PID Process ID * DELTA(us) Elapsed time from previous line to this line * FILE Filename of the Perl program * LINE Line number of filename * TYPE Type of call (sub) * SUB Perl subroutine * * LEGEND: * -> subroutine entry * <- subroutine return * * Filename and subroutine names are printed if available. * * WARNING: Watch the first column carefully, it prints the CPU-id. If it * changes, then it is very likely that the output has been shuffled. * * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. * * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at Docs/cddl1.txt * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * CDDL HEADER END * * 09-Sep-2007 Brendan Gregg Created this. */ #pragma D option quiet #pragma D option switchrate=10 self int depth; dtrace:::BEGIN { printf("%s %6s %10s %16s:%-4s %-8s -- %s\n", "C", "PID", "DELTA(us)", "FILE", "LINE", "TYPE", "SUB"); } perl*:::sub-entry, perl*:::sub-return /self->last == 0/ { self->last = timestamp; } perl*:::sub-entry { this->delta = (timestamp - self->last) / 1000; printf("%d %6d %10d %16s:%-4d %-8s %*s-> %s\n", cpu, pid, this->delta, basename(copyinstr(arg1)), arg2, "sub", self->depth * 2, "", copyinstr(arg0)); self->depth++; self->last = timestamp; } perl*:::sub-return { this->delta = (timestamp - self->last) / 1000; self->depth -= self->depth > 0 ? 1 : 0; printf("%d %6d %10d %16s:%-4d %-8s %*s<- %s\n", cpu, pid, this->delta, basename(copyinstr(arg1)), arg2, "sub", self->depth * 2, "", copyinstr(arg0)); self->last = timestamp; }