RE: [GD-General] profiling multi threaded applications

[Lewin, G. <gl...@ea...>]

You could have your START and END macros (I assume you use something
like that) include EnterCriticalSection and LeaveCriticalSection=20

> -----Original Message-----
> From: gam...@li...=20
> [mailto:gam...@li...] On=20
> Behalf Of Andras Balogh
> Sent: Wednesday, July 20, 2005 11:37 AM
> To: gam...@li...
> Subject: Re: [GD-General] profiling multi threaded applications
>=20
> Pretending that this is not an option, are there any other=20
> possibilities?
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> Christian Laforte wrote:
> > If possible, design your architecture so that your threads=20
> can work in=20
> > a lockstep mode, with one central mutex controlling which thread is=20
> > running at any given moment. That way you can at least get=20
> a partial=20
> > profile and optimize each thread individually.
> >=20
> > This type of design can also prove very useful to debug deadlocks.
> >=20
> > Hope that helps a bit,
> >=20
> > Christian Laforte
> > www.feelingsoftware.com
> >=20
> >=20
> >>-----Original Message-----
> >>From: gam...@li...
> >>[mailto:gam...@li...]=20
> On Behalf Of=20
> >>Andras Balogh
> >>Sent: Wednesday, July 20, 2005 10:36 AM
> >>To: gam...@li...
> >>Subject: [GD-General] profiling multi threaded applications
> >>
> >>I was about to add a simple profiler into our engine, but I've just=20
> >>realized that the usual hierarchical profiler that measures=20
> the time=20
> >>for a chunk of code won't cut it, in a multithreaded application.
> >>
> >>I understand that even when I have a single threaded app, there are=20
> >>usually several other applications are running in the=20
> background, but=20
> >>mostly they are all idle, so it's just noise. But in this case, I=20
> >>would have multiple, heavily working threads. If the OS=20
> switches back=20
> >>and forth between these threads all the time, then how is=20
> it possible=20
> >>to make accurate, or even just usable measurements??
> >>
> >>Thanks,
> >>
> >>Andras
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