[OmniOS-discuss] Dtrace not working

[Richard Elling]

Try the changes embedded below...

On May 16, 2014, at 7:03 AM, Matthew Lagoe <matthew.lagoe at subrigo.net> wrote:

> 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

#!/usr/sbin/dtrace -qs

> /*
> * 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

remove this #pragma
 -- richard

>  
> 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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--

Richard.Elling at RichardElling.com
+1-760-896-4422



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