Re: very sluggish editing
Re: very sluggish editing
- Subject: Re: very sluggish editing
- From: Brent Gulanowski <email@hidden>
- Date: Sun, 6 Jun 2004 12:59:18 -0400
On Jun 6, 2004, at 11:52 AM, Izidor Jerebic wrote:
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On 6 Jun 2004, at 14:40, Brent Gulanowski wrote:
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> On Jun 6, 2004, at 6:22 AM, Izidor Jerebic wrote:
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>> On 4 Jun 2004, at 00:50, Florent Pillet wrote:
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>>
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>>> XCode tends to be very sluggish when the same file is open for
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>>> editing in several windows (ie a debug window and an editor
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>>> window). I noticed this here on a dual 1Ghz G4 with 1.5Gb of RAM
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>>> (so I guess swap is not the issue ;-) )
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>>
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>> Just closing the Debug window is not enough. You need to change the
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>> file within Debug window to some other file. This is really
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>> bothersome.
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> I just wanted to let the list know that I have never seen this
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> problem, and I regularly have the debugger window in use. I think
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> there is a missing variable involved. (G4-dual867, 1.25GB).
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Hm, you have not seen what?
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1) A slowdown when editing the same file in two windows?
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2) A slowdown when the file in editor is also the file displayed in
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Debug window and it is visible?
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3) A slowdown when Debug window is closed?
I haven't seen any slowdowns at all. Maybe I haven't had any large
files open recently ...
Anyway, when Debug window is closed it's not released or anything, it's
just hidden, and the files in it aren't closed I figure.
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If I edit a file (~2000 lines) in an editor window and have it shown
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in any other editor window or as current file in Debug window (even
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closed Debug window), I notice significant slowdown. Not such that I
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could not type, just very annoying. I'm on Cube 450, by the way (yes,
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it's kinda slow, but I like this cute quiet Mac)...
Well I tried opening the Mac OS X Quake project which has a few big
files around 2000 lines, just to test, but the only delays I got were
when code sense was kicking in. (And the delay while the spell checker
looked up "codesense" when I mistyped it was similar.) Specifically, I
opened common.c in the embedded editor and then a bunch of other stuff,
then I opened the debug window and common.c was there immediately. I
mucked around in both windows and didn't get any abnormal delays.
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I was pointing to the problem that even as Debug window is closed,
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updates are processed in its text view. That slows down the xCode. And
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since the Debug window is closed, you do not know why this is
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happening! If you close the Debug window, you should not experience
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any delay due to processing within Debug window! It's closed!
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if you have two processors, this could be the answer to your different
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experience - try it with two editors and Debug window (open and
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closed), then.
OK I tried the embedded, the debug and a third dedicated window. I can
see a delay now -- if I try to type and delete a single character
repeatedly the editor cannot keep up. It accepts additions quickly but
the deletions are slow. But if someone with a 1.25 or 1.25dual is
seeing slowdowns with two editors, there are other factors. Maybe disk
speed?
I also don't have problems with XCode running out of memory. But even
with five or six projects open I doubt I'm pushing it like people on
teams would. (XCode is using around 500MB including VSIZE + ~110MB
shared).
Examining with Sample during some hyper-monkey-typing ("asdf-<delete>
;ljj;<delete>asdfjk id () adsflj" etc.) shows a lot of notifications
being posted and NSArray -makeObjectsPerformSelector:withObject: coming
up a lot, which makes sense.
I might point out that my System (thus including vm) and Applications
are on a dedicated drive while all of my files (including source code
and projects) are on a separate data drive. Both have >20% free space,
have recently been optimized, and are on separate busses, too. Although
I don't see why this would hit disk but I don't know how to test for
that.
Cheers,
--
Brent Gulanowski email@hidden
[demime 0.98b removed an attachment of type application/pkcs7-signature which had a name of smime.p7s]
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