1*1a457459SJohn-Mark Gurney#!/usr/sbin/dtrace -s 2*1a457459SJohn-Mark Gurney/*- 3*1a457459SJohn-Mark Gurney * Copyright 2014 John-Mark Gurney. 4*1a457459SJohn-Mark Gurney * All rights reserved. 5*1a457459SJohn-Mark Gurney * 6*1a457459SJohn-Mark Gurney * Redistribution and use in source and binary forms, with or without 7*1a457459SJohn-Mark Gurney * modification, are permitted provided that the following conditions 8*1a457459SJohn-Mark Gurney * are met: 9*1a457459SJohn-Mark Gurney * 1. Redistributions of source code must retain the above copyright 10*1a457459SJohn-Mark Gurney * notice, this list of conditions and the following disclaimer. 11*1a457459SJohn-Mark Gurney * 2. Redistributions in binary form must reproduce the above copyright 12*1a457459SJohn-Mark Gurney * notice, this list of conditions and the following disclaimer in the 13*1a457459SJohn-Mark Gurney * documentation and/or other materials provided with the distribution. 14*1a457459SJohn-Mark Gurney * 15*1a457459SJohn-Mark Gurney * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16*1a457459SJohn-Mark Gurney * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17*1a457459SJohn-Mark Gurney * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18*1a457459SJohn-Mark Gurney * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19*1a457459SJohn-Mark Gurney * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20*1a457459SJohn-Mark Gurney * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21*1a457459SJohn-Mark Gurney * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22*1a457459SJohn-Mark Gurney * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23*1a457459SJohn-Mark Gurney * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24*1a457459SJohn-Mark Gurney * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25*1a457459SJohn-Mark Gurney * SUCH DAMAGE. 26*1a457459SJohn-Mark Gurney * 27*1a457459SJohn-Mark Gurney */ 28*1a457459SJohn-Mark Gurney 29*1a457459SJohn-Mark Gurney#pragma D option quiet 30*1a457459SJohn-Mark Gurney#pragma D option dynvarsize=16m 31*1a457459SJohn-Mark Gurney 32*1a457459SJohn-Mark Gurneydtrace:::BEGIN 33*1a457459SJohn-Mark Gurney{ 34*1a457459SJohn-Mark Gurney printf("Tracing... Hit Ctrl-C to end.\n"); 35*1a457459SJohn-Mark Gurney} 36*1a457459SJohn-Mark Gurney 37*1a457459SJohn-Mark Gurneyio:::start 38*1a457459SJohn-Mark Gurney{ 39*1a457459SJohn-Mark Gurney start_time[arg0] = timestamp; 40*1a457459SJohn-Mark Gurney} 41*1a457459SJohn-Mark Gurney 42*1a457459SJohn-Mark Gurneyio:::done 43*1a457459SJohn-Mark Gurney/this->start = start_time[arg0]/ 44*1a457459SJohn-Mark Gurney{ 45*1a457459SJohn-Mark Gurney this->delta = (timestamp - this->start) / 1000; 46*1a457459SJohn-Mark Gurney @q[args[1]->device_name, args[1]->unit_number] = 47*1a457459SJohn-Mark Gurney lquantize(this->delta, 4000, 80000, 4000); 48*1a457459SJohn-Mark Gurney @max[args[1]->device_name, args[1]->unit_number] = max(this->delta); 49*1a457459SJohn-Mark Gurney @avg[args[1]->device_name, args[1]->unit_number] = avg(this->delta); 50*1a457459SJohn-Mark Gurney @stddev[args[1]->device_name, args[1]->unit_number] = stddev(this->delta); 51*1a457459SJohn-Mark Gurney start_time[arg0] = 0; 52*1a457459SJohn-Mark Gurney} 53*1a457459SJohn-Mark Gurney 54*1a457459SJohn-Mark Gurneytick-10s 55*1a457459SJohn-Mark Gurney{ 56*1a457459SJohn-Mark Gurney printa(" %s (%d), us:\n%@d\n", @q); 57*1a457459SJohn-Mark Gurney printa("max%s (%d), us:\n%@d\n", @max); 58*1a457459SJohn-Mark Gurney printa("avg%s (%d), us:\n%@d\n", @avg); 59*1a457459SJohn-Mark Gurney printa("stddev%s (%d), us:\n%@d\n", @stddev); 60*1a457459SJohn-Mark Gurney 61*1a457459SJohn-Mark Gurney clear(@q); 62*1a457459SJohn-Mark Gurney clear(@max); 63*1a457459SJohn-Mark Gurney clear(@avg); 64*1a457459SJohn-Mark Gurney clear(@stddev); 65*1a457459SJohn-Mark Gurney} 66