Re: [Rd] Creating XML document extremely slow

2012-02-15 Thread Friedrich Leisch
On Fri, 10 Feb 2012 13:18:38 +0100, Titus von der Malsburg (TvdM) wrote: Hi list, I'm using the package XML to create a simple XML document. Unfortunately constructing the XML tree is extremely slow. My code (see below) adds only about 100 nodes per second on an Intel i5

[Rd] Creating XML document extremely slow

2012-02-10 Thread Titus von der Malsburg
Hi list, I'm using the package XML to create a simple XML document. Unfortunately constructing the XML tree is extremely slow. My code (see below) adds only about 100 nodes per second on an Intel i5 machine. There's clearly something wrong but I don't see what. Here's a sample of the XML

Re: [Rd] Creating XML document extremely slow

2012-02-10 Thread Titus von der Malsburg
On Fri, Feb 10, 2012 at 1:40 PM, Friedrich Leisch wrote: Have you considered simply writing the XML using standard functions like cat() and friends? That can be much faster than creating an XML object and writing that out (have just done that to write exams into our e-learning platform via

Re: [Rd] Creating XML document extremely slow

2012-02-10 Thread Milan Bouchet-Valat
Le vendredi 10 février 2012 à 13:18 +0100, Titus von der Malsburg a écrit : Hi list, I'm using the package XML to create a simple XML document. Unfortunately constructing the XML tree is extremely slow. My code (see below) adds only about 100 nodes per second on an Intel i5 machine.

Re: [Rd] Creating XML document extremely slow

2012-02-10 Thread Titus von der Malsburg
On Fri, Feb 10, 2012 at 2:10 PM, Milan Bouchet-Valat nalimi...@club.fr wrote: Le vendredi 10 février 2012 à 13:18 +0100, Titus von der Malsburg a écrit : Just a guess, but I'd try creating all 'Marker' nodes first, storing them in a 'markers' list, and then calling addChildren(markernode,

Re: [Rd] Creating XML document extremely slow

2012-02-10 Thread Milan Bouchet-Valat
Le vendredi 10 février 2012 à 17:36 +0100, Titus von der Malsburg a écrit : On Fri, Feb 10, 2012 at 2:10 PM, Milan Bouchet-Valat nalimi...@club.fr wrote: Le vendredi 10 février 2012 à 13:18 +0100, Titus von der Malsburg a écrit : Just a guess, but I'd try creating all 'Marker' nodes

Re: [Rd] Creating XML document extremely slow

2012-02-10 Thread Titus von der Malsburg
On Fri, Feb 10, 2012 at 6:43 PM, Milan Bouchet-Valat nalimi...@club.fr wrote: Doesn't sound so bad to me. I don't think you'll find a use case where 3s will really be a problem. Actually I have exactly such a case because I have to produce many such documents and a difference of two orders of