[Twisted-web] Re: [Nevow-commits] r1003 - Don't call
getInterfaces over and over and over again
dp at ulaluma.com
Fri Dec 24 20:06:58 MST 2004
On Dec 24, 2004, at 6:38 PM, James Y Knight wrote:
> On Dec 24, 2004, at 5:46 PM, Donovan Preston wrote:
>> Don't call getInterfaces over and over and over again
> I'm pretty sure zope interfaces already caches this operation, so
> doing a double cache may actually be detrimental. But, measurements, I
Flatteners don't actually use the main adapter mechanism any more,
since what you register is a two-argument callable, not a "real"
adapter. Out of all the optimizations I performed, this one was the one
that provided one of the biggest speedup.
>> Optimize out some function calls (from property accesses)
> Why does it need a _specials dict anyways? What's wrong with just
> using the instance dict for those?
Yeah, the instance dict should probably be used. It does make it easy
to check if a node has specials though. I have been thinking about
moving the slotData dict into the specials dict to make the check even
easier. I'm going to write a bunch more tests and then have a stab at
refactoring some of the lower level code to be cleaner.
I'm not sure why Tag doesn't have a __slots__ declaration? I think it
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