Date: Mon, 5 Dec 2011 18:43:52 +0100 From: Oliver Pinter <oliver.pntr@gmail.com> To: rank1seeker@gmail.com Cc: hackers@freebsd.org Subject: Re: CPUTYPE and friends, from 'make.conf' benchmark Message-ID: <CAPjTQNH2AqDBFVEZQ4K3S2T34mbXhLzhPAhPhYrb3EChVmomZA@mail.gmail.com> In-Reply-To: <20111205.171654.020.1@DOMY-PC> References: <20111205.171654.020.1@DOMY-PC>
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On 12/5/11, rank1seeker@gmail.com <rank1seeker@gmail.com> wrote:
> I've took machine and installed binary FreeBSD(amd64 8.2-p4 GENERIC) on i=
t.
> Then I've installed 'benchmarks/unixbench' port.
>
> So everything is a default generic binary install ('make.conf' empty - no
> CPU optimization flags)
>
> After running: '# time unixbench', final score was:
> 394.2
> Completed in 22.8 min
>
>
> Then I've recompiled everything, from src, world and kernel, with
> 'make.conf':
> --
> CPUTYPE?=3Dcore2
> CFLAGS+=3D-march=3Dnative
> NO_CPU_CFLAGS=3Dyes
> COPTFLAGS+=3D-march=3Dnative
> NO_CPU_COPTFLAGS=3Dyes
> --
>
> After reboot, I've run: '# time unixbench', final score was:
> 313.5
> Completed in 26.7 min
>
> I'm getting worse result, with optimized FreeBSD's binaries?!?
> How come?
What is the test environment?
All tests running after a reboot? (if not, then do...)
Run all test in single user, when freebsd reboots, after the system
become up, than we have a running bgfsck (fixme).
And run the tests in multiple time, example with make.conf setting 5X
and without make.conf setting 5X.
>
>
> Domagoj Smol=C4=8Di=C4=87
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