Eric Buddington wrote:
> I'm running Povray 3.6.1 in Linux 2.6.7-mm6 on an Athlon XP.
> 
> While studying very slow performance on an sshfs disk (encrypted network
> filesystem), I discovered via strace that Povray is re-opening the main
> ..pov file about 120,000 times.
> 
> This seems to be related to the part of my code that reads in data for
> sphere locations. Varying the size of the data file changes the number of
> opens (of the main .pov file)
> 
> Throughout this, the data file is opened twice, and the .inc file that reads
> the data file is opened once. It's only the main .pov file that gets
> reopened obsessively.
> 
> 524641 opens with full file (87475 lines, 437375 numbers)
> 118234 opens with small file (19714 lines, 98570 numbers)
> 5997 opens with tiny file (1000 lines, 5000 numbers)

This seems perfectly normal, no bug.

If you test a minimal scene (no macros) and still find a high number of 
reopenings that would be different but i doubt it.

> So in short, the source file is opened about 5.997 times for each data line
> read. Poking through the POV source hasn't enlightened me yet. Can anyone
> explain this (the behaviour, not my failure to understand the source)?

http://www.povray.org/documentation/view/3.6.1/243/#s02_02_02_08_02

Christoph

-- 
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http://www.imagico.de/ (Last updated 20 Aug. 2006)
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