From: Boris Fersing <mastermac@free.fr>
To: Robert Hancock <hancockr@shaw.ca>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: HyperThreading, kernel 2.6.10, 1 logical CPU idle !!
Date: Sat, 30 Apr 2005 23:37:12 +0200 [thread overview]
Message-ID: <4273FA88.1060405@free.fr> (raw)
In-Reply-To: <4273E2BB.9010509@shaw.ca>
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.
next prev parent reply other threads:[~2005-04-30 21:37 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 [this message]
2005-05-01 13:42 ` Boris Fersing
2005-05-01 14:24 ` Coywolf Qi Hunt
2005-04-30 16:47 Boris Fersing
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