Re: How to activate a hyperthreading processor

From: Marc F. Neininger <doesnt.exist_at_champagnierle.de>
Date: Thu, 18 Oct 2007 17:08:02 +0200
Message-ID: <47177697$1@10.36.219.15>

fitzjarrell_at_cox.net schrieb:
> On Oct 18, 9:10 am, "Marc F. Neininger"
> <doesnt.ex..._at_champagnierle.de> wrote:

>> hpuxrac schrieb:
>>
>>
>>
>>
>>
>>> On Oct 18, 8:50 am, "Marc F. Neininger"
>>> <doesnt.ex..._at_champagnierle.de> wrote:
>>>> Hello,
>>>> Is the number of CPUs determined and configured at boot time or at
>>>> installation time?
>>>> I installed 10g EE on a Debian Linux system. During installation the
>>>> distro kernel was not capable of hyperthreading but worked.
>>>> Now I changed the kernel to a custom built one which uses HT. My scripts
>>>> do use both CPUS, the DBMS doesn't. The DMBS just switches from one to
>>>> the second virtual CPU.
>>>> TIA
>>>> Marc
>>> Did you try re-linking?
>> ??? Sorry, what do you mean by that? Reinstallation of the software?
>>
>> Greets
>>
>> Marc- Hide quoted text -
>>
>> - Show quoted text -

>
> No, you connect to the server using the 'oracle' account , set the
> proper ORACLE_HOME and other associated environment variables and
> type:
>
> relink all
>
> at the shell prompt.
>
>
> David Fitzjarrell
>

Hi David,

thanks for the advice. Unfortunately it didn't work. Relink worked, showed trillions of lines, DBMS worked as fine afterwards as before, but the load is still not balanced between the CPUs.

Thanks

Marc Received on Thu Oct 18 2007 - 10:08:02 CDT