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From "Setera, Craig" <Craig.Set...@Kingland.com>
Subject RE: getTemp() usage
Date Tue, 14 May 2002 19:58:36 GMT
My current time being spent on Jetspeed may be going away soon (gotta love
when projects get put on the back-burner).  If I can find time, I would like
to hook Jetspeed up to JProbe and see what it is up to.  The 80/20 rule
seems to apply quite well to performance tweaking on this stuff.  Don't know
if anyone else has one of these profiling/performance tools, but they
definitely give an interesting look at what is taking time.  The biggest
problem is that they don't necessarily tell you anything if you don't have
an idea of what the code is *supposed to* be doing.  I definitely don't have
a good feel for the inner workings of Jetspeed, so I may not be able to
glean much from JProbe.

I'll post any information I collect... If I don't get redirected too early.


-----Original Message-----
From: Glenn Golden [mailto:ggolden@umich.edu]
Sent: Tuesday, May 14, 2002 3:01 PM
To: Jetspeed-Dev (jetspeed-dev@jakarta.apache.org)
Subject: getTemp() usage

I put a breakpoint in TurbineUser.getTemp() and have been watching all the
getTemp calls for a single request - wow!  There are many.

One thing I noticed is that we seem to be building the profile many many
times.  Even though it's stored in the rundata!  I think that the jslink
needs it (in BaseJetspeedLink), so asks for it
(Profiler.getProfile(rundata)), and the Profiler class just passes the
request to the ProfilerService, and it just goes and creates it...

Unless I'm missing something here, it seems that we could put a check in the
Profiler class that pulls the profile out of the rundata, if it's there,
instead of calling the service...

- Glenn
Glenn R. Golden, Systems Research Programmer
University of Michigan School of Information
ggolden@umich.edu               734-615-1419

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