1*c29d5175Schristos #!/usr/sbin/dtrace -Zs 2*c29d5175Schristos /* 3*c29d5175Schristos * py_flowinfo.d - snoop Python function flow with info using DTrace. 4*c29d5175Schristos * Written for the Python DTrace provider. 5*c29d5175Schristos * 6*c29d5175Schristos * $Id: py_flowinfo.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ 7*c29d5175Schristos * 8*c29d5175Schristos * This traces activity from all Python programs on the system that are 9*c29d5175Schristos * running with Python provider support. 10*c29d5175Schristos * 11*c29d5175Schristos * USAGE: py_flowinfo.d # hit Ctrl-C to end 12*c29d5175Schristos * 13*c29d5175Schristos * FIELDS: 14*c29d5175Schristos * C CPU-id 15*c29d5175Schristos * PID Process ID 16*c29d5175Schristos * DELTA(us) Elapsed time from previous line to this line 17*c29d5175Schristos * FILE Filename of the Python program 18*c29d5175Schristos * LINE Line number of filename 19*c29d5175Schristos * TYPE Type of call (func) 20*c29d5175Schristos * FUNC Python function 21*c29d5175Schristos * 22*c29d5175Schristos * LEGEND: 23*c29d5175Schristos * -> function entry 24*c29d5175Schristos * <- function return 25*c29d5175Schristos * 26*c29d5175Schristos * Filename and function names are printed if available. 27*c29d5175Schristos * 28*c29d5175Schristos * WARNING: Watch the first column carefully, it prints the CPU-id. If it 29*c29d5175Schristos * changes, then it is very likely that the output has been shuffled. 30*c29d5175Schristos * 31*c29d5175Schristos * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. 32*c29d5175Schristos * 33*c29d5175Schristos * CDDL HEADER START 34*c29d5175Schristos * 35*c29d5175Schristos * The contents of this file are subject to the terms of the 36*c29d5175Schristos * Common Development and Distribution License, Version 1.0 only 37*c29d5175Schristos * (the "License"). You may not use this file except in compliance 38*c29d5175Schristos * with the License. 39*c29d5175Schristos * 40*c29d5175Schristos * You can obtain a copy of the license at Docs/cddl1.txt 41*c29d5175Schristos * or http://www.opensolaris.org/os/licensing. 42*c29d5175Schristos * See the License for the specific language governing permissions 43*c29d5175Schristos * and limitations under the License. 44*c29d5175Schristos * 45*c29d5175Schristos * CDDL HEADER END 46*c29d5175Schristos * 47*c29d5175Schristos * 09-Sep-2007 Brendan Gregg Created this. 48*c29d5175Schristos */ 49*c29d5175Schristos 50*c29d5175Schristos #pragma D option quiet 51*c29d5175Schristos #pragma D option switchrate=10 52*c29d5175Schristos 53*c29d5175Schristos self int depth; 54*c29d5175Schristos 55*c29d5175Schristos dtrace:::BEGIN 56*c29d5175Schristos { 57*c29d5175Schristos printf("%s %6s %10s %16s:%-4s %-8s -- %s\n", "C", "PID", "DELTA(us)", 58*c29d5175Schristos "FILE", "LINE", "TYPE", "FUNC"); 59*c29d5175Schristos } 60*c29d5175Schristos 61*c29d5175Schristos python*:::function-entry, 62*c29d5175Schristos python*:::function-return 63*c29d5175Schristos /self->last == 0/ 64*c29d5175Schristos { 65*c29d5175Schristos self->last = timestamp; 66*c29d5175Schristos } 67*c29d5175Schristos 68*c29d5175Schristos python*:::function-entry 69*c29d5175Schristos { 70*c29d5175Schristos this->delta = (timestamp - self->last) / 1000; 71*c29d5175Schristos printf("%d %6d %10d %16s:%-4d %-8s %*s-> %s\n", cpu, pid, this->delta, 72*c29d5175Schristos basename(copyinstr(arg0)), arg2, "func", self->depth * 2, "", 73*c29d5175Schristos copyinstr(arg1)); 74*c29d5175Schristos self->depth++; 75*c29d5175Schristos self->last = timestamp; 76*c29d5175Schristos } 77*c29d5175Schristos 78*c29d5175Schristos python*:::function-return 79*c29d5175Schristos { 80*c29d5175Schristos this->delta = (timestamp - self->last) / 1000; 81*c29d5175Schristos self->depth -= self->depth > 0 ? 1 : 0; 82*c29d5175Schristos printf("%d %6d %10d %16s:%-4d %-8s %*s<- %s\n", cpu, pid, this->delta, 83*c29d5175Schristos basename(copyinstr(arg0)), arg2, "func", self->depth * 2, "", 84*c29d5175Schristos copyinstr(arg1)); 85*c29d5175Schristos self->last = timestamp; 86*c29d5175Schristos } 87