* HyperThreading, kernel 2.6.10, 1 logical CPU idle !!
@ 2005-04-30 16:47 Boris Fersing
0 siblings, 0 replies; 5+ messages in thread
From: Boris Fersing @ 2005-04-30 16:47 UTC (permalink / raw)
To: linux-kernel
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 ?
Is that a kernel issue ? Could you please explain me what's happening ?
Thank you !
Boris.
^ permalink raw reply [flat|nested] 5+ messages in thread
[parent not found: <3Z3u8-28Z-9@gated-at.bofh.it>]
* Re: HyperThreading, kernel 2.6.10, 1 logical CPU idle !!
[not found] <3Z3u8-28Z-9@gated-at.bofh.it>
@ 2005-04-30 19:55 ` Robert Hancock
2005-04-30 21:37 ` Boris Fersing
0 siblings, 1 reply; 5+ messages in thread
From: Robert Hancock @ 2005-04-30 19:55 UTC (permalink / raw)
To: linux-kernel
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?
--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: HyperThreading, kernel 2.6.10, 1 logical CPU idle !!
2005-04-30 19:55 ` Robert Hancock
@ 2005-04-30 21:37 ` Boris Fersing
2005-05-01 13:42 ` Boris Fersing
0 siblings, 1 reply; 5+ messages in thread
From: Boris Fersing @ 2005-04-30 21:37 UTC (permalink / raw)
To: Robert Hancock; +Cc: linux-kernel
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.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: HyperThreading, kernel 2.6.10, 1 logical CPU idle !!
2005-04-30 21:37 ` Boris Fersing
@ 2005-05-01 13:42 ` Boris Fersing
2005-05-01 14:24 ` Coywolf Qi Hunt
0 siblings, 1 reply; 5+ messages in thread
From: Boris Fersing @ 2005-05-01 13:42 UTC (permalink / raw)
To: linux-kernel
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.
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: HyperThreading, kernel 2.6.10, 1 logical CPU idle !!
2005-05-01 13:42 ` Boris Fersing
@ 2005-05-01 14:24 ` Coywolf Qi Hunt
0 siblings, 0 replies; 5+ messages in thread
From: Coywolf Qi Hunt @ 2005-05-01 14:24 UTC (permalink / raw)
To: Boris Fersing; +Cc: linux-kernel
It seems the problem was already solved.Try the latest mm tree: 2.6.12-rc3-mm2.
FYI:
sched2-fix-smt-scheduling-problems-fix.patch
sched2-fix-smt-scheduling-problems.patch
On 5/1/05, Boris Fersing <mastermac@free.fr> wrote:
> 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.
--
Coywolf Qi Hunt
http://sosdg.org/~coywolf/
^ permalink raw reply [flat|nested] 5+ messages in thread
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2005-04-30 16:47 HyperThreading, kernel 2.6.10, 1 logical CPU idle !! Boris Fersing
[not found] <3Z3u8-28Z-9@gated-at.bofh.it>
2005-04-30 19:55 ` Robert Hancock
2005-04-30 21:37 ` Boris Fersing
2005-05-01 13:42 ` Boris Fersing
2005-05-01 14:24 ` Coywolf Qi Hunt
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