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Re: Performance improvement for a recursive function?

Subject: Re: Performance improvement for a recursive function?
From: Andrew Welch <andrew.j.welch@xxxxxxxxx>
Date: Tue, 13 Dec 2011 15:16:28 +0000
Re:  Performance improvement for a recursive function?
> On 13/12/2011, Michael Kay <mike@xxxxxxxxxxxx> wrote:
>>> to process 41337 path commands it takes 861 sec! The first 5000 path
>>> commands are processed in 14 sec (at 355.87 per sec) the last 5000
>>> take 671 sec (only at 7.5 per sec).
>> I'm seeing an execution time of about 90 seconds under Saxon-EE
>> 9.3.0.11, down to 23 seconds under Saxon-EE 9.4.0.1
> What baffles me is that with each tail-recursion it takes longer to
> execute the function! Do you see this also with 9.4? Any idea about
> the possible reason?

Garbage collection, disk thrashing ?

1gb isn't much...


-- 
Andrew Welch
http://andrewjwelch.com

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