[Haskell-cafe] hxt memory useage

Don Stewart dons at galois.com
Fri Jan 25 13:26:15 EST 2008

> 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.

So this is a request for an xml-light based on lazy bytestrings, designed
for speed at all costs?

-- Don

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