[ofw] Reference count debugging mechanism proposal

[Fab Tillier]

-          There's nothing to prevent WPP from being run for debug builds too.  That's an OpenFabrics decision, not a WPP limitation.

-          You can have ETW events log to the debugger.  A WPP trace session is managed explicitly, so I don't understand what you mean by your second point.

-          Filtering data, if you structure your trace messages in a logical way, should be trivial.

-          Right, you need to write more new code to filter the data, code that isn't necessarily portable to things that don't use cl_obj or al_obj or whatever_obj you are using at the time.  Using WPP tracing is generic, independent of any underlying code structure.


From: Uri Habusha [mailto:urih at mellanox.co.il]
Sent: Tuesday, December 07, 2010 4:23 AM
To: Fab Tillier; Irena Gannon; 'ofw at lists.openfabrics.org'
Subject: RE: [ofw] Reference count debugging mechanism proposal

 Because of following reasons:


*         WPP is only run on free not in debug.

*         WPP should explicit to be operate. that means when we need it, it will not be.

*         Using WPP is more complicate. You need to take the binaries and format it. Afterward filtering of specific data is complicated.

*         Using internal data allows us to right a debugger extension and filter the data easily


From: ofw-bounces at lists.openfabrics.org [mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Fab Tillier
Sent: Tuesday, December 07, 2010 1:48 AM
To: Irena Gannon; 'ofw at lists.openfabrics.org'
Subject: Re: [ofw] Reference count debugging mechanism proposal

Why not just use WPP/ETW tracing for this, rather than re-implement the logging?  The WPP/ETW tracing has the advantage that the logs could be gathered in one place and analyzed in another.  You can trace all the same information as you propose.

-Fab

From: ofw-bounces at lists.openfabrics.org [mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Irena Gannon
Sent: Monday, November 29, 2010 8:46 AM
To: 'ofw at lists.openfabrics.org'
Subject: [ofw] Reference count debugging mechanism proposal

Hello,

Please review the attached proposal for adding debugging information to the reference count mechanism.

Thank you,
Irena
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