[haiku-appserver] Re: what is special about the T40p?!?

  • From: Stephan Assmus <superstippi@xxxxxx>
  • To: haiku-appserver@xxxxxxxxxxxxx
  • Date: Sat, 11 Aug 2007 19:47:19 +0200

André Braga wrote (2007-08-11, 19:19:32 [+0200]):
> On 8/11/07, Stephan Assmus <superstippi@xxxxxx> wrote:
> > Hi guys,
> >
> > my boss has borrowed me his IBM T40p. I know there are a couple of you 
> > who own such a machine. What might be special about it?!? The Haiku 
> > app_server feels like it is running about 10 times as fast as on my 
> > other, much faster computer which has an ATI graphics board as well. I 
> > know this is the chipset (M6) that the radeon driver has been 
> > originally written for, IIRC, but I doubt this is the reason. Is it 
> > using RAM for graphics memory? Is there something special about the 
> > first generation centrino CPUs that makes Haiku's scheduler like them? 
> > What is it? The difference is like night and day!
> SpeedStep effects messing with timers and timeouts?

I wouldn't think so.

> Different memory controller,


> PCIe vs AGP

AGP should be slower.

>, different bus speeds, larger CPU cache?...

Both are much faster and bigger on the other computer.

What about weird interrupts that Haiku maybe has to put up with on newer 

Best regards,

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