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    SubjectRe: HyperThreading, kernel 2.6.10, 1 logical CPU idle !!
    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.



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    Coywolf Qi Hunt
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