Re: FOP ~ PropertyList search gives linear performance (FROM: fop-user)

[John Austin <jw...@sympatico.ca>]

On Tue, 2003-11-18 at 22:36, Peter B. West wrote:


> That way lies madness.  When you look into the *actual* requirements for 
> property processing, you may well draw the same conclusions as I did. 
> In fact, when I got to the point of running some comparative timing 
> tests, I had already decided that there were serious flaws in my design 
> which I needed to address before proceeding.  Some of those I have 
> already mentioned.  I will give you the benefit of my experiences 
> off-line.  You may be able to see a way to integrate the work I have 
> done with the current directions of HEAD.

Overnight I ran another test, using xml-fop_20031118231549.tar.gz
and the final summary of the call tree SUGGESTS that things are
better (although the results may be incorrect).

> The last assessment of the situation that I can recall on this list was 
> that property handling is working satisfactorily so there is no need to 
> pay any attention to it.  Yes, really.

My focus is on performance. I came to the properties discussion from a
measurement of program performance. In my experience, measurement is
the most reliable approach to optimization.

I have attached another screen dump. I tyry to keep them small, but
tjhey get a bit grainy if I reduce them too much.

> >  I would also like to suggest
> > that anyone interested in performance look at Java Memory
> > Profiler at http://www.khelekore.org/jmp/performance.html
> > 
> > I suspect there are still major memory leaks in FOP and this
> > is one tool that will help you track them down.
> > 
> 
> Peter
-- 
John Austin <jw...@sympatico.ca>

Re: FOP ~ PropertyList search gives linear performance (FROM: fop-user)

["Peter B. West" <pb...@powerup.com.au>]

No shortages here.

Peter

John Austin wrote:
> On Wed, 2003-11-19 at 19:50, Peter B. West wrote:
> 
>>John Austin wrote:
> 
> ...
> 
>>My apologies to everyone on the list for the testy tone  ...
> 
> You mean I might have help p*ss*ng people off ?

-- 
Peter B. West <http://www.powerup.com.au/~pbwest/resume.html>

Re: FOP ~ PropertyList search gives linear performance (FROM: fop-user)

[John Austin <jw...@sympatico.ca>]

On Wed, 2003-11-19 at 19:50, Peter B. West wrote:
> John Austin wrote:
...
> My apologies to everyone on the list for the testy tone  ...
You mean I might have help p*ss*ng people off ?
> Peter
-- 
John Austin <jw...@sympatico.ca>

Re: FOP ~ PropertyList search gives linear performance (FROM: fop-user)

["Peter B. West" <pb...@powerup.com.au>]

John Austin wrote:
> On Tue, 2003-11-18 at 22:36, Peter B. West wrote:
>
...

> Overnight I ran another test, using xml-fop_20031118231549.tar.gz
> and the final summary of the call tree SUGGESTS that things are
> better (although the results may be incorrect).
> 
...
> 
> My focus is on performance. I came to the properties discussion from a
> measurement of program performance. In my experience, measurement is
> the most reliable approach to optimization.

Entirely understandable.  Let me know what conclusions you come to.  I 
will fill you in off-line on the approach I am taking.

My apologies to everyone on the list for the testy tone of my previous 
posting.

Peter
-- 
Peter B. West <http://www.powerup.com.au/~pbwest/resume.html>