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Re: Speeding up XCode?
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Re: Speeding up XCode?


  • Subject: Re: Speeding up XCode?
  • From: David Ewing <email@hidden>
  • Date: Wed, 19 Oct 2005 10:50:27 -0600


On Oct 19, 2005, at 4:41 AM, Dair Grant wrote:


So, let's look back to my findings from my original post: opening an
assembler listing with 467,747 lines of code in TextEdit and forcing
TextEdit to lay out the whole file takes 20 seconds.
...
Now, opening the same file in Xcode and forcing again a layout of the
whole file takes Xcode a bit over 2 minutes or more than 120 seconds.

I pasted CarbonEvents.h onto itself 32 times to create a 16Mb file with
466K lines. From hitting Open to being able to flick between top/ bottom,
the times were:


    BBEdit 8             2 seconds
    CodeWarrior 9        6 seconds
    TextEdit (10.4)     58 seconds
    Xcode 2.1           95 seconds

So whatever extra work Xcode is doing doesn't amount to a x6 slowdown
for me, it's more like x1.5 (on a 1.25Ghz/1Gb PB).

This is more in line with what we see here. (Also note that if you copy the formatted text from Xcode into a TextEdit window, you get similar results with the two apps.) More than a 2x slowdown compared with TextEdit sounds like an old version of Xcode. Xcode 2.0 and later are _much_ faster than Xcode 1.5 and earlier. (And Xcode 1.5 was much faster than Project Builder.) That said, we are still well aware that we need to do better. We're working on it.


Dave

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 >Re: Speeding up XCode? (From: Dair Grant <email@hidden>)

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