From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Christian Kujau <lists@nerdbynature.de>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: more bogomips :)
Date: Sun, 25 Mar 2007 05:59:13 +1000 [thread overview]
Message-ID: <1174766353.10836.104.camel@localhost.localdomain> (raw)
In-Reply-To: <Pine.LNX.4.64.0703241645360.10654@sheep.housecafe.de>
On Sat, 2007-03-24 at 16:48 +0000, Christian Kujau wrote:
> I know bogomips are kinda "bogus by definition", but I'll ask anyway,
> out of curiosity:
>
> --- ppc-cpuinfo.2.6.20-rc6 2007-01-27 12:33:00.000000000 +0000
> +++ ppc-cpuinfo.2.6.21-rc4-git6 2007-03-24 16:25:26.000000000 +0000
> @@ -1,8 +1,8 @@
> processor : 0
> cpu : 7447A, altivec supported
> -clock : 1199.999997MHz
> +clock : 1199.999000MHz
> revision : 0.1 (pvr 8003 0101)
> -bogomips : 36.73
> +bogomips : 73.47
> timebase : 18432000
> platform : PowerMac
> machine : PowerBook6,5
>
> It seems that with a more recent kernel, bogomips have doubled (both
> with CONFIG_HZ=1000, if this matters). How comes?
Not sure what the bogomips are about nowadays but they are irrelevant on
most macs as we use the timebase for short delays.
Ben.
next prev parent reply other threads:[~2007-03-24 19:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-24 16:48 more bogomips :) Christian Kujau
2007-03-24 19:59 ` Benjamin Herrenschmidt [this message]
2007-03-25 8:26 ` Johannes Berg
2007-03-25 8:31 ` Johannes Berg
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