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Re: SMP kernel completes kernel compile

To: Dimitris Michailidis <dimitris@xxxxxxxxxxxxxxxxxxxx>
Subject: Re: SMP kernel completes kernel compile
From: Ralf Baechle <ralf@xxxxxxxxxxx>
Date: Mon, 15 May 2000 21:50:33 +0200
Cc: skunx@xxxxxxxxxxxxxxxxxxx, linux-origin@xxxxxxxxxxx
In-reply-to: <XFMail.20000514123203.dimitris@xxxxxxxxxxxx>; from dimitris@xxxxxxxxxxxxxxxxxxxx on Sun, May 14, 2000 at 12:32:03PM -0700
References: <391D869F.DF668984@xxxxxxx> <XFMail.20000514123203.dimitris@xxxxxxxxxxxx>
Sender: owner-linux-origin@xxxxxxxxxxx
On Sun, May 14, 2000 at 12:32:03PM -0700, Dimitris Michailidis wrote:

> First, we need to agree on what exactly we will be compiling.  I have
> numbers from 4P x86 -j4 but for a different kernel configuration.  I must
> say though that the CPU utilizations above are extremely low for parallel
> make.  For 4P I get utilizations above 350%.  On the other hand, the number
> of page faults is comparable (given the x86 box has more memory) so I'm
> curious what the CPUs on the o2k are doing.

I'll have to check if the timekeeping of the kernel is working properly.
The last test with a MP kernel showed very inaccurate timekeeping.

  Ralf

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