Re: Profiling a multiprocessing server?

Cl-http has had this built in for years.  Works on the Lisp Machine  
and probably LW.

You might have a look and see how it works.

On May 9, 2006, at 3:55 AM, Chris Dean wrote:

>
>
> We have an portableaserve based server that I would like to profile
> and I'm not sure how to do that.  The server side function performs a
> calculation and returns in less that one second.  It is that function
> that we wish to profile.
>
> What we would like to do is to turn let the server run for a few
> minutes and collect profiling information on that function and
> everything else in the package.
>
> Is there a way to turn on profiling, let the system run, and then
> print out the profiling information using hcl:print-profile-list ?
>
> I've tried the simple thing of just wrapping my server side function
> in hcl:profile (so hcl:profile is called hundreds of times) but I
> don't think that is working -- after a running for a few minutes
> hcl:print-profile-list sometimes reports:
>
>     No profiler data collected - may need to increase the length of  
> the
>     run.
>
> Thanks again folks!
>
> Regards,
> Chris Dean
>

Re: Profiling a multiprocessing server?

On Tue, May 09, 2006 at 12:55:59AM -0700, Chris Dean wrote:
> We have an portableaserve based server that I would like to profile
> and I'm not sure how to do that.  The server side function performs a
> calculation and returns in less that one second.  It is that function
> that we wish to profile.

I have a similar issue in that I'd like to profile the activity on a
Lispworks ORB Corba server.  I've written my own profiling infrastructure,
which is nice in many ways, but it would be good to get fine-grained
sampled profiling data from Lispworks too (i.e. the usually function
stack information from the profiling tool), and I can't figure out how.

-bcd

Re: Profiling a multiprocessing server?

bdowning@lavos.net (Brian Downing) writes:
> I have a similar issue in that I'd like to profile the activity on a
> Lispworks ORB Corba server.  

Yes, that's the same issue I'm having.

Regards,
Chris Dean

Re: Profiling a multiprocessing server?

"John C. Mallery" <jcma@csail.mit.edu> writes:
> If the Lisp supports thread-aware profiling code, you could invoke it
> similarly as was done for the lisp machine.

That's exactly what I'm looking for.  I'm interested in measuring a
fine grain profile of my code that is called in the response
function.  I don't know if LispWorks can do that.

Regards,
Chris Dean

Re: Profiling a multiprocessing server?

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Re: Profiling a multiprocessing server?

Martin Simmons <martin@lispworks.com> writes:
> The profiler looks at all threads when invoked using the PROFILE macro, so try
> something like
>
> (profile (sleep 10))
>
> in a Listener and then exercise the server threads before SLEEP returns.

Works perfectly - thanks!

Regards,
Chris Dean