[OmniOS-discuss] Dtrace not working
Matthew Lagoe
matthew.lagoe at subrigo.net
Fri May 16 14:03:29 UTC 2014
I am looking at moving from openindiana to omnios and I have a dtrace script
(below) that works on openindiana however I have tried running it on the
latest omnios r151010 and it doesn't run with the error ": No such file or
directory"
I am running it with ./wfileio.d, the other DTT scripts seem to work fine
When I run it with dtrace -s wfileio.d I also get an error "dtrace: failed
to compile script wfileio.d: line 39: failed to set option 'quiet': Invalid
option name
#!/usr/sbin/dtrace -s
/*
* wfileio.d - write file I/O stats, with cache miss rate.
* Written using DTrace (Solaris 10 3/05)
*
* This script provides statistics on the number of reads and the bytes
* read from filesystems (logical), and the number of bytes read from
* disk (physical). A summary is printed every five seconds by file.
*
* A total miss-rate is also provided for the file system cache.
*
* $Id: wfileio.d 3 2007-08-01 10:50:08Z brendan $
*
* USAGE: wfileio.d
*
* IDEA: Richard McDougall, Solaris Internals 2nd Ed, FS Chapter.
*
* 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
*
* 19-Mar-2006 Brendan Gregg Created this.
* 23-Apr-2006 " " Last update.
* 20-Mar-2014 Linda Kateley Modified into writes
*/
#pragma D option quiet
self int trace;
uint64_t lbytes;
uint64_t pbytes;
dtrace:::BEGIN
{
trace("Tracing...\n");
}
fbt::fop_write:entry
/self->trace == 0 && args[0]->v_path/
{
self->pathname = cleanpath(args[0]->v_path);
@wio[self->pathname, "logical"] = count();
lbytes += args[1]->uio_resid;
self->size = args[1]->uio_resid;
self->uiop = args[1];
}
fbt::fop_write:return
/self->size/
{
@wbytes[self->pathname, "logical"] =
sum(self->size - self->uiop->uio_resid);
self->size = 0;
self->uiop = 0;
self->pathname = 0;
}
io::bdev_strategy:start
/self->size && args[0]->b_flags & B_READ/
{
@wio[self->pathname, "physical"] = count();
@wbytes[self->pathname, "physical"] =
sum(args[0]->b_bcount);
pbytes += args[0]->b_bcount;
}
profile:::tick-5s
{
trunc(@wio, 20);
trunc(@wbytes, 20);
printf("\033[H\033[2J");
printf("\nWrit IOPS, top 20 (count)\n");
printa("%-54s %10s %10 at d\n", @wio);
printf("\nWrite Bandwidth, top 20 (bytes)\n");
printa("%-54s %10s %10 at d\n", @wbytes);
trunc(@wio);
}
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