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RE: [cdt-dev] RE: Problem with large source files in CDT 6.0.1
My assumption is that there is one highlighting type which takes most of the time.
You could try and disable one semantic highlighting type one after the other to find out which one uses all the CPU.
 
And please do file a bug report.
 
Thanks,
Toni

From: cdt-dev-bounces@xxxxxxxxxxx [mailto:cdt-dev-bounces@xxxxxxxxxxx] On Behalf Of Kennedy, Stephen M (Steve)
Sent: Wednesday, September 30, 2009 5:31 PM
To: CDT General developers list.
Subject: [cdt-dev] RE: Problem with large source files in CDT 6.0.1

I've gathered some details on a slightly different aspect of this problem.
 
A - Opening a 8500 line C++ file
B - The outline appears
C - Highlighting of types/variables appears
 
I'm running this on a slowish Solaris system, which I'm sure exacerbates the problem.  In CDT 5.0.2, the time between A & B is about 5 seconds and the time between B & C is 1 or 2 seconds.  In CDT 6.0.1, the AB interval is again about 5 seconds, but the BC interval is 20 seconds.  For a huge 38,000 line file, BC is around 3 minutes.
 
I've turned on all the CDT tracing options that I know of and for the majority of the BC interval there's no corresponding tracing output although there's obviously something going on (CPU usage/100s of mb of allocation/deallocation).
 
I tried to file a bug report yesterday but it was eaten by a bugzilla internal error (didn't like my choosing OS & HW =other).
 
Steve

From: cdt-dev-bounces@xxxxxxxxxxx [mailto:cdt-dev-bounces@xxxxxxxxxxx] On Behalf Of Kennedy, Stephen M (Steve)
Sent: Monday, September 28, 2009 5:13 PM
To: CDT General developers list.
Subject: [cdt-dev] Problem with large source files in CDT 6.0.1

We have some rather large source files (e.g, around 39,000 lines).  CDT 5.0.2 handled them pretty well--after opening the file it took about 30 seconds for the outline to show up and all the syntax highlighting to appear.  I just set up a CDT 6.0.1 install and have found the large file handling is not working as well.  After opening a large file, the outline shows up in 30s, but it takes an additional 3-4 minutes for the highlighting on variables/types to show up.  During this time, hovers don't usually work (but oddly sometimes do).  Even worse, every F3 (open declaration) operation takes 3-4 minutes to complete.  I'm watching the heap mem usage in jconsole and it uses and releases 200mb of memory 6 times before the operation completes.
 
Any ideas what's going on here?
 
Thanks,
Steve Kennedy
 

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