From owner-freebsd-alpha  Tue May 29  0:32:17 2001
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To: Andrew Gallatin <gallatin@cs.duke.edu>
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Subject: Re: tscp MIPS result really weird
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the SRM console says
96KB ACACHE
2MB  BCACHE

do u think my BCACHE is not working properly ???

thanks

Rick

On Mon, 28 May 2001, Andrew Gallatin wrote:

> Date: Mon, 28 May 2001 15:29:17 -0400 (EDT)
> From: Andrew Gallatin <gallatin@cs.duke.edu>
> To: Riccardo.Veraldi@fi.infn.it
> Cc: freebsd-alpha@FreeBSD.ORG
> Subject: Re: tscp MIPS result really weird
>
>
> Riccardo.Veraldi@fi.infn.it writes:
>  >
>  > Hello, I just run the tscp program taken at
>  >
>  > http://socsci.colorado.edu/~tarrb/kerrigat/
>  >
>  > I run it on my Miata DPW 500a and here is the weird result:
>  > Nodes: 550822
>  > Best time: 22900 ms
>  > Nodes per second: 24053 (163.5 MIPS)
>  >
>  > I am very disappointed I Was expecting something like 800 MIPS
>  > Do you think the tscp is wrong or is that my system to have problems ??
>  > Could anyone else try tscp on his Alpha machine even if is not Miata ??
>
> Do you have a bcache?
>
> I just ran this thing on a 600MHz 164lx with a 2mb bcache, 4.3-RELEASE:
>
>
> GCC: cc -O3 -funroll-loops -fexpensive-optimizations -fschedule-insns2 *.c -o tsc.gcc *.o -lcompat
>
> Nodes: 627028
> Best time: 10408 ms
> Nodes per second: 60244
> tscp>
>
> Then I compiled it on an osf/1 alpha and ran it on the same box:
>
> DECC: cc -tune ev56 -O4 -fast -ifo *.c -o tsc.deccc
>
> Nodes: 627028
> Best time: 8904 ms
> Nodes per second: 70420
> tscp>
>
>
> Drew
>


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