[Haskell-cafe] hxt memory useage

[Ketil Malde]

Matthew Pocock <matthew.pocock at ncl.ac.uk> writes:

> I've been using hxt to process xml files. Now that my files are getting a bit 
> bigger (30m) I'm finding that hxt uses inordinate amounts of memory.
  :
> Is this a known issue?

Yes.  I parse what I suppose are rather large XML files (the largest
so far is 26GB), and ended up replacing HXT code with TagSoup.  I also
needed to use concurrency[1].  XML parsing is still slow, typically
consuming 90% of the CPU time, but at least it works without blowing
the heap. 

While I haven't tried HaXML, there is IMO a market opportunity for a
fast and small XML library, and I'd happily trade away features like
namespace support or arrows interfaces for that.

-k

[1] http://www.mail-archive.com/haskell-cafe@haskell.org/msg31862.html
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