[GD-General] Assistance with VTune results required

[Barstow J. <JBa...@uk...>]

I'm profiling our (DX8,PC) game and getting the following results :

System : Win2000, Geforce2 GTS

game.exe			15%
nv4_disp.dll		10%
ntoskrnl.exe		14%
hall.dll			35%

That 35% in hall.dll breaks down to
	READ_PORT_ULONG
and
	HalRequestlpi
(among some others)

Can anyone offer advice on what the hal.dll hit is/means?

Thanks,
Jason Barstow.