[XML-SIG] Expat as xmllib
Andrew M. Kuchling
Mon, 24 Jan 2000 12:35:52 -0500 (EST)
Paul Prescod writes:
>Without any xmllib-specific optimization, pyexpat runs almost as fast as
>raw sgmlop: 13222 items; 0.426 seconds; 1281.29 kbytes per second
>fast xmllib: 13222 items; 1.445 seconds; 378.03 kbytes per second
>slow xmllib: 13222 items; 6.651 seconds; 82.11 kbytes per second
>pyexpat: 13210 items; 1.527 seconds; 357.68 kbytes per second
>I can think of several optimizations that could speed it up quite a bit.
21K/sec difference, or around 6% slower; very good. Let's discuss
these optimizations at IPC8; I'd like to get a version of this into
the CVS tree ASAP.
>Also if you compare it to the xmllib in the standard distribution, we
>are talking night and day so if we bundle expat we're only improving
>things for them.
Note that the xmllib in 1.5.2 and xml.parsers.xmllib are different;
namespace support has been added to the 1.5.2 version. This is a
divergence that's needed fixing for a while, and now seems like a good
Is Expat becoming a fairly common component of Linux and *BSD
distributions? I still dislike the idea of adding Expat to the Python
distribution, because of possible collisions with updated versions of
A.M. Kuchling http://starship.python.net/crew/amk/
And at times the fact of her absence will hit you like a blow to the chest,
and you will weep. But this will happen less and less as time goes on.
-- From SANDMAN: "The Song of Orpheus"