1N/A#!/usr/sbin/dtrace -Zs
1N/A/*
1N/A * py_flowinfo.d - snoop Python function flow with info using DTrace.
1N/A * Written for the Python DTrace provider.
1N/A *
1N/A * $Id: py_flowinfo.d 41 2007-09-17 02:20:10Z brendan $
1N/A *
1N/A * This traces activity from all Python programs on the system that are
1N/A * running with Python provider support.
1N/A *
1N/A * USAGE: py_flowinfo.d # hit Ctrl-C to end
1N/A *
1N/A * FIELDS:
1N/A * C CPU-id
1N/A * PID Process ID
1N/A * DELTA(us) Elapsed time from previous line to this line
1N/A * FILE Filename of the Python program
1N/A * LINE Line number of filename
1N/A * TYPE Type of call (func)
1N/A * FUNC Python function
1N/A *
1N/A * LEGEND:
1N/A * -> function entry
1N/A * <- function return
1N/A *
1N/A * Filename and function names are printed if available.
1N/A *
1N/A * WARNING: Watch the first column carefully, it prints the CPU-id. If it
1N/A * changes, then it is very likely that the output has been shuffled.
1N/A *
1N/A * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
1N/A *
1N/A * CDDL HEADER START
1N/A *
1N/A * The contents of this file are subject to the terms of the
1N/A * Common Development and Distribution License, Version 1.0 only
1N/A * (the "License"). You may not use this file except in compliance
1N/A * with the License.
1N/A *
1N/A * You can obtain a copy of the license at Docs/cddl1.txt
1N/A * or http://www.opensolaris.org/os/licensing.
1N/A * See the License for the specific language governing permissions
1N/A * and limitations under the License.
1N/A *
1N/A * CDDL HEADER END
1N/A *
1N/A * 09-Sep-2007 Brendan Gregg Created this.
1N/A */
1N/A
1N/A#pragma D option quiet
1N/A#pragma D option switchrate=10
1N/A
1N/Aself int depth;
1N/A
1N/Adtrace:::BEGIN
1N/A{
1N/A printf("%s %6s %10s %16s:%-4s %-8s -- %s\n", "C", "PID", "DELTA(us)",
1N/A "FILE", "LINE", "TYPE", "FUNC");
1N/A}
1N/A
1N/Apython*:::function-entry,
1N/Apython*:::function-return
1N/A/self->last == 0/
1N/A{
1N/A self->last = timestamp;
1N/A}
1N/A
1N/Apython*:::function-entry
1N/A{
1N/A this->delta = (timestamp - self->last) / 1000;
1N/A printf("%d %6d %10d %16s:%-4d %-8s %*s-> %s\n", cpu, pid, this->delta,
1N/A basename(copyinstr(arg0)), arg2, "func", self->depth * 2, "",
1N/A copyinstr(arg1));
1N/A self->depth++;
1N/A self->last = timestamp;
1N/A}
1N/A
1N/Apython*:::function-return
1N/A{
1N/A this->delta = (timestamp - self->last) / 1000;
1N/A self->depth -= self->depth > 0 ? 1 : 0;
1N/A printf("%d %6d %10d %16s:%-4d %-8s %*s<- %s\n", cpu, pid, this->delta,
1N/A basename(copyinstr(arg0)), arg2, "func", self->depth * 2, "",
1N/A copyinstr(arg1));
1N/A self->last = timestamp;
1N/A}