mirror of
https://github.com/Stichting-MINIX-Research-Foundation/netbsd.git
synced 2025-09-11 08:07:30 -04:00
60 lines
1.6 KiB
D
Executable File
60 lines
1.6 KiB
D
Executable File
#!/usr/sbin/dtrace -s
|
|
/*
|
|
* iofileb.d - I/O bytes by filename and process.
|
|
* Written using DTrace (Solaris 10 3/05).
|
|
*
|
|
* This prints a summary of requested disk activity by pathname,
|
|
* providing totals of the I/O events in bytes. It is a companion to the
|
|
* iofile.d script - which prints in terms of I/O wait time, not bytes.
|
|
* I/O wait time is a better metric for understanding performance issues.
|
|
* Both disk and NFS I/O are measured.
|
|
*
|
|
* $Id: iofileb.d,v 1.1.1.1 2015/09/30 22:01:07 christos Exp $
|
|
*
|
|
* USAGE: iofileb.d # wait several seconds, then hit Ctrl-C
|
|
*
|
|
* FIELDS:
|
|
* PID process ID
|
|
* CMD command name
|
|
* KB Kilobytes of disk I/O
|
|
* FILE Full pathname of the file
|
|
*
|
|
* 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
|
|
*
|
|
* 20-Feb-2006 Brendan Gregg Created this.
|
|
* 20-Feb-2006 " " Last update.
|
|
*/
|
|
|
|
#pragma D option quiet
|
|
|
|
dtrace:::BEGIN
|
|
{
|
|
printf("Tracing... Hit Ctrl-C to end.\n");
|
|
}
|
|
|
|
io:::start
|
|
{
|
|
@files[pid, execname, args[2]->fi_pathname] = sum(args[0]->b_bcount);
|
|
}
|
|
|
|
dtrace:::END
|
|
{
|
|
normalize(@files, 1024);
|
|
printf("%6s %-12s %6s %s\n", "PID", "CMD", "KB", "FILE");
|
|
printa("%6d %-12.12s %@6d %s\n", @files);
|
|
}
|