#!/usr/sbin/dtrace -Cs /* * anonpgpid.d - anonymous memory paging info by process on CPU. * Written using DTrace (Solaris 10 3/05). * * This scripts may help identify which processes are affected by a system * with low memory, which is paging to the physical swap device. A report * of the process on the CPU when paging occured is printed. * * $Id: anonpgpid.d,v 1.1.1.1 2015/09/30 22:01:07 christos Exp $ * * USAGE: anonpgpid.d # hit Ctrl-C to end * * FIELDS: * PID Process ID * CMD Process name * D Direction, Read or Write * BYTES Total bytes during sample * * NOTES: * * This program is currently an approximation - often the process when writing * pages to swap will be "pageout" the pageout scanner, or "rcapd" the * resource capping daemon. * * THANKS: James Dickens * * COPYRIGHT: Copyright (c) 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 * * TODO: * * Track processes accurately. This is a little difficult - anonpgout * occurs asynchronously to the process, and events related to this don't * point back to the process. * * Author: Brendan Gregg [Sydney, Australia] * * 25-Jul-2005 Brendan Gregg Created this. * 18-Feb-2006 " " Last update. */ #include #pragma D option quiet dtrace:::BEGIN { printf("Tracing... Hit Ctrl-C to end.\n"); } fbt::pageio_setup:entry /((args[2]->v_flag & (VISSWAP | VSWAPLIKE)) != 0)/ { @total[pid, execname, args[3] & B_READ ? "R" : "W"] = sum(arg1); } dtrace:::END { printf("%6s %-16s %1s %s\n", "PID", "CMD", "D", "BYTES"); printa("%6d %-16s %1s %@d\n", @total); }