Re: Performance with keyed archives

FROM : Steven Kramer
DATE : Fri Nov 26 19:02:57 2004

Op 25-nov-04 om 20:33 heeft Will Mason het volgende geschreven:

>> Fire up Shark to sample what is going on.

>
> Thanks for the advice. I did Shark it, and my code doesn't appear on
> the profile list when sorted according to time spent until item number
> 30, consuming a whopping 0.1% of the app's time. Everything that's
> slowing my app down is from CoreFoundation.
>
> I think I will file a bug, since when the new, fancy version of
> something is 121 times slower than the old, stinky version, then
> something is wrong.
>


Or the new version does a lot more than the old version, as is the case
here.

That said, someone did write a marginally faster version of
NSKeyedArchiver...please Google for it, because I lost the link months
ago. When I say marginally, I mean about 2x as fast. Which in my case
(like yours), was not enough because over archiving over a few thousand
keys soon becomes impractical with NSKeyedArchiver. It just wasn't made
for that many data.


Regards

Steven Kramer

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Met vriendelijke groeten,

Steven Kramer

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