Phoenix performance

I've just started working with Phoenix on a couple of projects...

Is it my imagination or is Phoenix quite a bit faster and more responsive than Classic?

Michael

Depends on how you are using it, but in general in the long run there will be less cruft and whatnot so in theory yes.
I have been focusing on optimizing performance parts of the code also: loops etc. Ex: ListCtrlHighlighterMixin
Stuff like that.
So it all depends… PY2 and PY3 performance will be different also, but generally 3.3 has the same speeds overall as 2.7 did.
It will only get better with time.

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On Thursday, February 27, 2014 8:37:01 PM UTC-6, Michael Hipp wrote:

I’ve just started working with Phoenix on a couple of projects…

Is it my imagination or is Phoenix quite a bit faster and more
responsive than Classic?

Michael

Michael Hipp wrote:

I've just started working with Phoenix on a couple of projects...

Is it my imagination or is Phoenix quite a bit faster and more
responsive than Classic?

Yes, I haven't done any actual measurements, but that has been my feeling too and it fits with the changes in code structure and architecture that have been made. Early on it looked like there was going to be a significant runtime memory usage savings too, but that gap has narrowed somewhat as more class wrappers have been added in the core module.

Some of the general changes in the generated wrapper code that contribute to the improvements include:

* Less layers. In most cases a call to a wrapped C++ method goes directly to that method's C wrapper without needing to pass through 1 or 2 layers of additional Python function calls.

* Wrapped classes are extension types instead of just a collection of function wrappers that are glued together into a class by Python code.

* More efficient type checking and type conversion.

* Less hacks. Most things that I had to make "creative workarounds" for in the past are built-in and so the implementation and support of the feature is part of the design and intent of the code instead of something bolted on to the side.

* Less memory use for string constants. Generated string constants in the code for things like class, method, parameter and instance names are reused via a pointer to a single instance of the text instead of just using yet another new but identical string literal each time.

And probably some others I'm not thinking of at the moment.

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Robin Dunn
Software Craftsman