On Jun 30, 2010, at 8:09 AM, Carsten Klein wrote:
Also something that was brought up before but not really discussed,
Genshi. Do we want to continue trying to improve it or do we
undertake
another template swap? This might even be too big a thing for 0.13,
but if 0.14 is to follow soon after we should probably work out an
official stance.
Currently, I am trying to improve on Genshi performance.
I now have written a stream api that will eliminate current practice
of processing a stream and collecting stream events into a single list
over and over again. This, at least in my opinion is one of the major
bottlenecks in overall Genshi performance.
I am currently having a hard time figuring out how to incorporate
the directives into the new processing model, which is based on
chained iterators rather than chained calls to generators and
list processing.
While not having done any full integration yet, I am confident that
will boost overall performance by a few percents. And, with the then
more clear architecture and hopefully reduced recursiveness and thus
complexity, Genshi will become more accessible to other developers,
so that more people can begin optimizing it.
I don't think a few percent is going to cut it when Jinja is something
like 2-3x faster and uses far less memory on similar pages. It is hard
to overlook a speedup of that magnitude in favor of developer elegance.
As for the switch. Please either stick to Genshi or make it so that
you will provide support for both Genshi and the new templating
engine,
so that when we are done with Genshi optimization, we do not have such
hard times of going back to Genshi as an alternative.
We tried offering a compat layer last time and I think we can all
agree that it was under used and probably not worth repeating given
the complexity.
--Noah
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