Django HttpResponse performance with mimetype=application/atom+xml or text/xml
serjant
Can somebody help me and point me to solving the following problem:
1. I am writing an application where I render the needed information
in the XML file (to be more specific GeoRSS)
2. I am generating the GeoRSS with the means of the GeoAtom1RSS django
class, and passing it to HttpResponse in this way:
response = HttpResponse(mimetype='application/atom+xml')
geoFeed.write(response, encoding) #geoFeed is the generated GeoRSS
return response
So the problem is time rendering of this XML file in browser. When I
want to see the generated RSS or XML in borwser, then the rendering is
too slow, takes at least 25-40 seconds.
I wrote a TestCase, where i found that the generator is not to blame
at all, cuz selecting data from the database and generating GeoRSS
with it takes 2-3 seconds maximum (avg: 1.5 seconds) in case the data
is so huge.
By switching the mimetype to text/html, the performance was really
good and stopped at 3 seconds of the rendering.
Is there any way to increase the speed of the GeoRSS or XML rendering
with HttpResponse?
Is that a known issue?
Thanks in advance
David
Dan Carroll
isn't the problem, this could be a browser issue. Most browsers
attempt to parse and style the XML (to show it in a nice document
tree), which could take a while for really huge files. When choosing
to output with the HTML mimetype, the browser doesn't need to do any
extra work.
