Re: profiling

[Marcus G. Daniels]

Christopher Mackie wrote:

> I don't play with ObjC-Swarm, so I don't have anything useful to contribute: I'm sure some longtime Swarmers will.  I imagine I'd use gprof. 
>
> My current favorite profiler is one my employer gives me for free:  Rational's 
> Quantify.  *Very* nice--does Java/C/C++/VB/.NET, which is handy b/c the current 
> project (which has needed major tweaking) is all C++ and lives in Visual 
> Studio.NET.
>  
Keep in mind that even with Java/Swarm the kernel is the same, and that 
must be compiled with GCC and use the GNU Objective C runtime.   How 
would Quantify deal with DLLs from a non-Microsoft compiler?  Does it 
use instrumentation installed by the Microsoft compiler?  Would the 
result be that time spent in Swarm would be invisible?

By the way, Swarm can generate IDL and C++ interface stubs right now 
(for XPCOM).   With a little work this could be adapted for the 
freely-available .NET SDK.  The IDL wouldn't be needed for .NET, and the 
adapted C++ stubs could link against libobjc runtime functions compiled 
in GCC with stdcall attributes.  Presto, Swarm in .NET.


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