Speed Analysis Util.

[Gustavo da Silva]

Well, I didn't do the tests, yet.

Of course, if I compile the speed-test util and load as a kernel module, it
will run in long mode. At this moment, there is no
reason to run in real mode. After the answer about the speed in long mode,
maybe port the util to real mode.

What issues & concerns will I have to develop, even as kernel module?!

I would like to get the information about how many memory cells can my
program access in 1 second.

For example about a issue/concern: How to interrupt the counter after 1
second of execution, if I (intend) will stop
preemption & interruptions?!


2012/12/11 Tobias Boege <tobias at gambas-buch.de>

> On Tue, 11 Dec 2012, Gustavo da Silva wrote:
> > I would like to tell myself: Ok, so, in 1second, my computer can access
> > 2.000 memory cells (relatively, because there is the "inc" instruction
> time
> > spent, for counting).
> >
> > I'm using a AMD Athlon 64 X2 L310 (1.2ghz).
> >
> > It would not be a easy task (for me) to develop, because I'm not a
> Assembly
> > profissional programmer, and I'm not a young man who have
> > much time to develop all utils those I would like to create.
> >
> > It would not be easy, too, because it will be necessary (I think/believe)
> > to set paging (x86) mechanism, enabling long mode, ... ...Well, if not,
> it
> > will be easier.
> >
> > I'm imaginating a very simple program!! But if someone wants to create
> > (doesn't want to wait me), ... my tip is: "So my Friend: Let's go! Do
> it!"!
>
> In case I didn't understand properly: what do you want to do, now? You said
> you wanted to speed-test your machine long and in real mode.
>
> You seem to have done the test under Linux already. You were in long mode
> when running Linux. Why do you want to go to long mode manually then?
>
> What's left is real mode and there are quite few things easier than running
> some code in real mode.
>
> If there's a specific reason, indeed, to go to long mode by hand, you may
> also use Pure64[0] to boot into your long mode and execute code then.
>
> Regards,
> Tobi
>
> [0] http://www.returninfinity.com/pure64.html
>
>
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-- 
Atenciosamente,

Gustavo da Silva
gustavodasilva at gmail.com
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