1*c29d5175Schristos #!/usr/sbin/dtrace -Zs 2*c29d5175Schristos /* 3*c29d5175Schristos * py_flowtime.d - snoop Python functions with flow and delta times. 4*c29d5175Schristos * Written for the Python DTrace provider. 5*c29d5175Schristos * 6*c29d5175Schristos * $Id: py_flowtime.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ 7*c29d5175Schristos * 8*c29d5175Schristos * This traces shell activity from Python programs on the system that are 9*c29d5175Schristos * running with Python provider support. 10*c29d5175Schristos * 11*c29d5175Schristos * USAGE: py_flowtime.d # hit Ctrl-C to end 12*c29d5175Schristos * 13*c29d5175Schristos * This watches Python function entries and returns, and indents child 14*c29d5175Schristos * function calls. 15*c29d5175Schristos * 16*c29d5175Schristos * FIELDS: 17*c29d5175Schristos * C CPU-id 18*c29d5175Schristos * TIME(us) Time since boot, us 19*c29d5175Schristos * FILE Filename that this function belongs to 20*c29d5175Schristos * DELTA(us) Elapsed time from previous line to this line 21*c29d5175Schristos * FUNC Python function name 22*c29d5175Schristos * 23*c29d5175Schristos * LEGEND: 24*c29d5175Schristos * -> function entry 25*c29d5175Schristos * <- function return 26*c29d5175Schristos * 27*c29d5175Schristos * Filename and function names are printed if available. 28*c29d5175Schristos * 29*c29d5175Schristos * WARNING: Watch the first column carefully, it prints the CPU-id. If it 30*c29d5175Schristos * changes, then it is very likely that the output has been shuffled. 31*c29d5175Schristos * 32*c29d5175Schristos * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. 33*c29d5175Schristos * 34*c29d5175Schristos * CDDL HEADER START 35*c29d5175Schristos * 36*c29d5175Schristos * The contents of this file are subject to the terms of the 37*c29d5175Schristos * Common Development and Distribution License, Version 1.0 only 38*c29d5175Schristos * (the "License"). You may not use this file except in compliance 39*c29d5175Schristos * with the License. 40*c29d5175Schristos * 41*c29d5175Schristos * You can obtain a copy of the license at Docs/cddl1.txt 42*c29d5175Schristos * or http://www.opensolaris.org/os/licensing. 43*c29d5175Schristos * See the License for the specific language governing permissions 44*c29d5175Schristos * and limitations under the License. 45*c29d5175Schristos * 46*c29d5175Schristos * CDDL HEADER END 47*c29d5175Schristos * 48*c29d5175Schristos * 09-Sep-2007 Brendan Gregg Created this. 49*c29d5175Schristos */ 50*c29d5175Schristos 51*c29d5175Schristos #pragma D option quiet 52*c29d5175Schristos #pragma D option switchrate=10 53*c29d5175Schristos 54*c29d5175Schristos self int depth; 55*c29d5175Schristos 56*c29d5175Schristos self int last; 57*c29d5175Schristos 58*c29d5175Schristos dtrace:::BEGIN 59*c29d5175Schristos { 60*c29d5175Schristos printf("%3s %-16s %-16s %9s -- %s\n", "C", "TIME(us)", "FILE", 61*c29d5175Schristos "DELTA(us)", "FUNC"); 62*c29d5175Schristos } 63*c29d5175Schristos 64*c29d5175Schristos python*:::function-entry, 65*c29d5175Schristos python*:::function-return 66*c29d5175Schristos /self->last == 0/ 67*c29d5175Schristos { 68*c29d5175Schristos self->last = timestamp; 69*c29d5175Schristos } 70*c29d5175Schristos 71*c29d5175Schristos python*:::function-entry 72*c29d5175Schristos { 73*c29d5175Schristos this->delta = (timestamp - self->last) / 1000; 74*c29d5175Schristos printf("%3d %-16d %-16s %9d %*s-> %s\n", cpu, timestamp / 1000, 75*c29d5175Schristos basename(copyinstr(arg0)), this->delta, self->depth * 2, "", 76*c29d5175Schristos copyinstr(arg1)); 77*c29d5175Schristos self->depth++; 78*c29d5175Schristos self->last = timestamp; 79*c29d5175Schristos } 80*c29d5175Schristos 81*c29d5175Schristos python*:::function-return 82*c29d5175Schristos { 83*c29d5175Schristos this->delta = (timestamp - self->last) / 1000; 84*c29d5175Schristos self->depth -= self->depth > 0 ? 1 : 0; 85*c29d5175Schristos printf("%3d %-16d %-16s %9d %*s<- %s\n", cpu, timestamp / 1000, 86*c29d5175Schristos basename(copyinstr(arg0)), this->delta, self->depth * 2, "", 87*c29d5175Schristos copyinstr(arg1)); 88*c29d5175Schristos self->last = timestamp; 89*c29d5175Schristos } 90