Bugs item #1889487, was opened at 2008-02-08 10:35
Message generated for change (Comment added) made by stmane
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Category: PF/compiler
Group: Pathfinder 0.22
Status: Open
Resolution: None
Priority: 3
Private: No
Submitted By: Maurice van Keulen (mvankeulen)
Assigned to: Jan Rittinger (tsheyar)
>Summary: PF: Algebra compiler uses a lot of memory

Initial Comment:
When trying to compile the attached query (it doesn't matter what it does) with 
the algebra backend (pf -A b.xq), my machine (1GB) starts swapping considerably 
and "top" shows that all the while the pf-compiler is using >80% of my memory. 
The query only has about 100 lines. For my usage of MonetDB/XQuery, I would 
need to be able to compile and execute queries of at least 1000 lines.

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>Comment By: Stefan Manegold (stmane)
Date: 2008-02-10 14:17

Message:
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Originator: NO

tagged as "PF" in subject


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Comment By: Jan Rittinger (tsheyar)
Date: 2008-02-08 13:26

Message:
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Originator: NO

Maurice, do you have the Boehm garbage collector library installed?

If yes -- please try compiling it stand-alone (pf -A) and then feeding the
MIL output by hand into the Mserver.

Otherwise you will get punished for the fact that Pathfinder relies on
garbage collection (which is not done by the Mserver in the MonetDB/XQuery
context).

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