From: Boris Fersing <mastermac@free.fr>
To: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: HyperThreading, kernel 2.6.10, 1 logical CPU idle !!
Date: Sun, 01 May 2005 15:42:48 +0200 [thread overview]
Message-ID: <1114954969.27940.1.camel@electron> (raw)
In-Reply-To: <4273FA88.1060405@free.fr>
I disabled SMT in the kernel config and yet it seems to work ...
Boris.
Le samedi 30 avril 2005 à 23:37 +0200, Boris Fersing a écrit :
> Robert Hancock a écrit :
>
> > Boris Fersing wrote:
> >
> >> Hi there,
> >> I've a p4 HT 3,06Ghz, I've HT enabled in the BIOS and in the kernel :
> >>
> >> Linux electron 2.6.10-cj5 #6 SMP Fri Mar 4 02:18:08 CET 2005 i686 Mobile
> >> Intel(R) Pentium(R) 4 CPU 3.06GHz GenuineIntel GNU/Linux .
> >>
> >> But it seems that one of my cpus is idle (gkrellm monitor or top) :
> >>
> >> Cpu0 : 88.0% us, 12.0% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.0% hi,
> >> 0.0% si
> >> Cpu1 : 0.0% us, 0.3% sy, 0.0% ni, 99.7% id, 0.0% wa, 0.0% hi,
> >> 0.0% si
> >>
> >>
> >> I'm actually compiling thunderbird with MAKEOPTS="-j3", so , the second
> >> should be used, shouldn't it ?
> >
> >
> > Are you sure that it is actually compiling multiple files at once?
> >
> Yes I'm sure, Even if I launch more than 1 gcc, or for example, start a
> compilation + video encoding (mencoder) + ... the second CPU won't work
> (idle 100% or sometimes 99,9%).
>
> Regards,
>
> Boris.
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next prev parent reply other threads:[~2005-05-01 13:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3Z3u8-28Z-9@gated-at.bofh.it>
2005-04-30 19:55 ` HyperThreading, kernel 2.6.10, 1 logical CPU idle !! Robert Hancock
2005-04-30 21:37 ` Boris Fersing
2005-05-01 13:42 ` Boris Fersing [this message]
2005-05-01 14:24 ` Coywolf Qi Hunt
2005-04-30 16:47 Boris Fersing
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