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From: William Cohen <wcohen@redhat.com>
To: David Smith <dsmith@redhat.com>,
	Systemtap List <systemtap@sourceware.org>,
	       pcp <pcp@oss.sgi.com>
Subject: Re: [pcp] systemtap/pcp integration
Date: Fri, 18 Jul 2014 21:10:00 -0000	[thread overview]
Message-ID: <53C98D38.7080703@redhat.com> (raw)
In-Reply-To: <53C83CB9.3020808@redhat.com>

On 07/17/2014 05:14 PM, David Smith wrote:
> Here's a small update on the prototype systemtap/pcp integration work
> I'm doing. I've create a systemtap branch, called 'dsmith/mmv' that
> contains all my work. Basically this work allows systemtap to create
> 'mmv' memory mapped files.
> 
> If you checkout and build that, then you should be able to run the
> attached systemtap script. This script is a translation of pcp's example
> python mmv script found in src/python/mmv.py.
> 
> Note that systemtap will create a file called 'mmv' in
> /proc/systemtap/{MODULE_NAME}. I've just been using pcp's 'mmvdump'
> utility to dump the contents of the /proc/systemtap/{MODULE_NAME}/mmv
> file. Currently the pcp mmv pmda only looks in one place for mmv files,
> but it might be possible to create a symbolic link to systemtap's mmv
> file to make it happy.
> 
> The code works for the attached script, but I'm sure it is quite
> fragile. Things like locking, error checking, documentation, etc. need
> to be done.
> 
> 
> 
> _______________________________________________
> pcp mailing list
> pcp@oss.sgi.com
> http://oss.sgi.com/mailman/listinfo/pcp
> 

Hi David,

I was able to get this to work on RHEL 7.  However, on fedora20 the mmvdump gets a sigsegv in the dump() function.

-Will

  parent reply	other threads:[~2014-07-18 21:10 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-17 21:14 David Smith
2014-07-18 15:49 ` Frank Ch. Eigler
2014-07-18 17:02   ` David Smith
2014-07-18 18:27     ` Frank Ch. Eigler
2014-07-22 14:25       ` David Smith
2014-07-22 15:21         ` Frank Ch. Eigler
2014-07-22 21:02           ` David Smith
2014-07-18 21:10 ` William Cohen [this message]
2014-07-21 15:43   ` [pcp] " David Smith
2014-07-21 15:54     ` William Cohen
2014-07-22  1:32 ` Nathan Scott
2014-07-22  2:57   ` Frank Ch. Eigler
2014-07-22 14:50   ` [pcp] " David Smith
2014-07-23 10:29     ` Nathan Scott
2014-07-23 14:42       ` Frank Ch. Eigler
2014-07-24  7:40         ` Nathan Scott

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