Re: Win95 performance counter interface?

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Article #23439

#23439

From: LKS
Date: Wed, 02 Dec 1998 00:00

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jwes@oro.net wrote:
> 
> On 28 Nov 1998 15:49:11 GMT, LKS <lk213@hermes.cam.ac.uk> wrote:
> 
> >Brandon Van Every wrote:
> >>
> >> 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?
> >
> >you can use the Win32 API
> >
> >  QueryPerformanceCounter
> >  QueryPerformanceFrequency

> I suspect he is looking for the other performance counters, such as
> cache misses, etc. If there is not one built-in (or documented), it
> would be a trivial VxD.

I'd like to see a VxD which could intercept processoer cache misses,
branch prediction failures etc. ;)
I think the P II supports grabbing all this extra info but I know no
more.

-lks

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From: LKS <lk213@hermes.cam.ac.uk>
Subject: Re: Win95 performance counter interface?
Date: 1998/12/02
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