RE: [GD-General] profiling multi threaded applications
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From: Lewin, G. <gl...@ea...> - 2005-07-20 20:39:41
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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? >=20 >=20 > 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 >=20 >=20 > ------------------------------------------------------- > SF.Net email is sponsored by: Discover Easy Linux Migration=20 > Strategies from IBM. Find simple to follow Roadmaps,=20 > straightforward articles, informative Webcasts and more! Get=20 > everything you need to get up to speed, fast.=20 > http://ads.osdn.com/?ad_id=3D7477&alloc_id=3D16492&op=3Dclick > _______________________________________________ > Gamedevlists-general mailing list > Gam...@li... > https://lists.sourceforge.net/lists/listinfo/gamedevlists-general > Archives: > http://sourceforge.net/mailarchive/forum.php?forum_id=3D557 >=20 |