Re: Win95 performance counter interface?

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Article #23449

#23449

From: black_phantom
Date: Sun, 15 Nov 1998 00:00

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> Does Win95 have an API interface to SET UP the Pentium II performance
> counters?  i.e. a built-in method to indirectly execute the Ring 0 WRMSR
> instruction?
>
> I know you can do it on NT, I want to do it on Win95.
>
> If Win95 has no such interface, is there a kernel driver to do it floating
> around the net somewhere?
>
> I've R a lot of TFMs including Intel docs, MSDN CDs, DejaNews on comp.arch,
> comp.lang.asm.x86, comp.sys.intel, and intel.*, AltaVista on the subject in
> general.  I am not getting anywhere....

Two choices:

Write your own VxD that will do the job (the conventional way)

Win95 allows you to rise from application to ring 0 and you can do so. If you
don't need antything but execute a couple of instructions this will be more
suitable way.

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From: black_phantom@my-dejanews.com
Subject: Re: Win95 performance counter interface?
Date: 1998/11/15
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