Re: Is there a faster hi resolution timer for diy profiling


"Willy Denoyette [MVP]" <willy.denoyette@xxxxxxxxxx> wrote in message
news:exvO4oPWIHA.748@xxxxxxxxxxxxxxxxxxxxxxx
....
You need to check your project/debug attributes for this project.

Ive looked in all the settings and theres hardly any at all that look like
they might make a difference,
espcially compared to the options for c++,
in the build options theres optimise code wich makes a slight difference.

there may well be options I havnt discovered yet,
I had to ask how to do 1 or 2 things so far only to be told you cant do
that,
then someone says its an option in a menu id never seen before by prerssing
"ctrl-d" + e

The debug version of the code I posted, takes 230-350 cycles (that is the
time needed to service that rdtsc function)when running in the managed
debugger (IDE VS2008) on my box.
Which is quite normal, because the CLR has to signal the transition into
unmanaged code to the debugging engine (and obviously to the attached
debugger).

so im seeing an increase of 30 times greater than what your seeing, maybe
it has to do with VS2005 express ?
im using .net2.0 although i cant see that making a difference,
I do notice however that there seems to be debug versions of the .net dlls

anyway Ive got my run time down from 3000 seconds to 20 seconds wich is
acceptable for now, there seems to be no single thing wich looks like it
could easily be optimised further, although some octal tree sectioning
<might> help.
but this is a complication il think of when ive done some other things,
and only if its realy necessary.

although the managed directx does seem to spend quite a while copying vertex
information,
wich is an array of structs,
I cant create an array of structs in advance becuse I dont know the size in
advance,
so I make a list wich it then has to convert to an array,
then copy it to the graphics device lol.
unfortunatly I cant make the struct array very big to start with becuase it
copies the whole array and complains if I tell it the size is smaller than
its length.

il probly try to work out the size in advance or something.

Colin =^.^=


.

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