Re: optimizing cpp files in Objective C project
Re: optimizing cpp files in Objective C project
- Subject: Re: optimizing cpp files in Objective C project
- From: "Micah Sharp" <email@hidden>
- Date: Mon, 12 Nov 2007 15:54:02 -0800
Let me double check. One of the engineers here downloaded CHUD to do
profiling and came to this conclusion. I'll get the lines.
Micah
----- Original Message -----
From: "Chris Espinosa" <email@hidden>
To: "Micah Sharp" <email@hidden>
Cc: <email@hidden>
Sent: Monday, November 12, 2007 1:34 PM
Subject: Re: optimizing cpp files in Objective C project
On Nov 12, 2007, at 1:02 PM, Micah Sharp wrote:
We recently did some profiling of an Objective C project that included
some cpp files against a regular C++ project with the same cpp files,
and we came to the conclusion that all optimizations were being turned
off for C++ files in the Objective C project case. Is this a known
issue with XCode or could we be wrong? We had some wildly different
performance numbers for two projects in the same code and changing the
cpp files to a separately built static library eliminated most of the
differences.
Hm. The OPTIMIZATION_FLAGS should apply both to C++ and Objective-C
files. Could you paste the CompileC lines from the build transcript for
the .m and the .cpp files?
The only way you can tell whether optimization is taking effect is
inspection of the generated executable code. Very, very many things can
affect performance other than optimization.
Chris
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Xcode-users mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden