Subject: Re: kernel-2.6.14-rc5-rt7 - 604.62 BogoMIPS (2.6.14-rc5 - 6024.43
	BogoMIPS) problem with bogometer ?
From: john stultz <johnstul@us.ibm.com>
To: art@usfltd.com
Cc: linux-kernel@vger.kernel.org, mingo@elte.hu
In-Reply-To: <200510281828.AA38666812@usfltd.com>
References: <200510281828.AA38666812@usfltd.com>
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Date: Fri, 28 Oct 2005 16:42:15 -0700
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On Fri, 2005-10-28 at 18:28 -0500, art wrote:
> kernel-2.6.14-rc5-rt7 - 604.62 BogoMIPS (2.6.14-rc5 - 6024.43 BogoMIPS) problem with bogometer ?
> 
> kernel-2.6.14-rc5-rt7 -- Calibrating delay using timer specific routine.. 604.62 BogoMIPS (lpj=302311)
> 
> kernel-2.6.14-rc5 -- Calibrating delay using timer specific routine.. 6024.43 BogoMIPS (lpj=12048877)

Assuming this is an i386 kernel, in the timeofday patches, the __delay
function has been converted to be a simple loop based delay instead of
TSC based, since the TSC has too many potential problems. 

That should explain a differing lpj value, although 10x smaller is a
little strange, so I'll dig into this on my system and see if I find
anything.

Do let me know if you see any actual changes in behavior (drivers acting
funny, etc).

thanks
-john


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