#!/usr/sbin/dtrace -s /* * rwbbypid.d - read/write bytes by PID. * Written using DTrace (Solaris 10 3/05) * * This script tracks the bytes read and written at the syscall level * by processes, printing the totals in a report. This is tracking the * successful number of bytes read or written. * * $Id: rwbbypid.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ * * USAGE: rwbbypid.d # hit Ctrl-C to end sample * * FIELDS: * PID process ID * CMD process name * DIR direction, Read or Write * BYTES total bytes * * COPYRIGHT: Copyright (c) 2005, 2006 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 * * 28-Jun-2005 Brendan Gregg Created this. * 20-Apr-2006 " " Last update. */ #pragma D option quiet dtrace:::BEGIN { printf("Tracing... Hit Ctrl-C to end.\n"); } sysinfo:::readch { @bytes[pid, execname, "R"] = sum(arg0); } sysinfo:::writech { @bytes[pid, execname, "W"] = sum(arg0); } dtrace:::END { printf("%6s %-24s %4s %16s\n", "PID", "CMD", "DIR", "BYTES"); printa("%6d %-24s %4s %@16d\n", @bytes); }