1N/A * iofile.d - I/O wait time by filename and process. 1N/A * Written using DTrace (Solaris 10 3/05). 1N/A * This prints the total I/O wait times for each filename by process. 1N/A * This can help determine why an application is performing poorly by 1N/A * identifying which file they are waiting on, and the total times. 1N/A * Both disk and NFS I/O are measured. 1N/A * $Id: iofile.d 3 2007-08-01 10:50:08Z brendan $ 1N/A * USAGE: iofile.d # wait, then hit Ctrl-C to end 1N/A * TIME Total wait time for disk events, us 1N/A * FILE File pathname 1N/A * SEE ALSO: iosnoop, iotop 1N/A * PORTIONS: Copyright (c) 2005, 2006 Brendan Gregg. 1N/A * The contents of this file are subject to the terms of the 1N/A * Common Development and Distribution License, Version 1.0 only 1N/A * (the "License"). You may not use this file except in compliance 1N/A * See the License for the specific language governing permissions 1N/A * and limitations under the License. 1N/A * 24-Jul-2005 Brendan Gregg Created this. 1N/A * 20-Apr-2006 " " Last update. 1N/A/* save time at start */ 1N/A * wait-done is used as we are measing wait times. It also 1N/A * is triggered when the correct thread is on the CPU, obviating 1N/A * the need to link process details to the start event. 1N/A printf(
"%6s %-12s %8s %s\n",
"PID",
"CMD",
"TIME",
"FILE");