From: "Lanman" <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: Re: [newbie] Enabling hyper threading. Date: Mon, 29 Dec 2003 06:41:10 -0500
On 12/29/2003 at 11:27 AM Steven Nelson wrote:
>Hi, based on the replies you all sent I have a couple questions. I write >them in order, based on the importance or being more likely to be or fix >the >problem, 1- . One being the first concern. The questions are listed in >order >of what needs to be done first, based on my judgement. > >1.(3 questions) >I have read the information in your replies. The question I have is, is >there another way to enable hyper threading besides the using the smp >kernel >or updating to 2.6 kernel? Generally there are commands to enable features >like hyper threading. Are you sure there is not a command or something >like >it? Also is there a command I can run from the command line to make sure >hyper threading is not enabled? I don't think it is, just to be sure >though >(I didn't notice the penguins during installation). > >2.(no questions) >I did not notice one or two penguins during the installation. I also wrote >this above, although if there are any commands it would be helpful to be >100% sure ht is enabled. I do not think it is. > >3.(3 questions) >If there is not a way to get hyper threading to work with the regular >kernel, is all that needs to be done is boot from the smp kernel? Will >booting from that kernel work? Is there anything else that needs to be >done >to get hyperthreading enabled in Linux besides booting from the smp kernel? > >4.(2 questions) >I already installed the kernel-2.4.22.21mdk-1-1mdk.i586.rpm, so if you >install 2.6 kernel the same way, it shouldn't be a problem. Would I need >to >use the smp kernel? Would I need to configure it to enable hyper threading? > > Steven >
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Steven; Without knowing what motherboard you're running, I'm not sure if this will help or not, but I had to manually enable the "Hyper-Threading" option in my BIOS. After exiting the BIOS, my Asus board reports 2 Intel Pentium P4-2.8Mgz CPU's, instead of only 1. After that, it's just a question of booting from either the SMP or Enterprise kernels, both of which are able to detect and use multiple CPU's. Both kernels seems to handle everything nicely ( in Mandrake 9.2 ), and up come the two penguin icons during a text bootup. I have never seen them appear when launching a graphical version of LILO. One thing I've noticed though, is that for the first time, Mandrake actually runs faster than Windows 2000 now, where it has been consistently slower in the past, although not by much.
Lanman
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The hyper threading is enabled in BIOS. I will try booting from one of those kernels. Is there a way to configure the default kernel so that that hyper will work with it? Are there any type of configuration options that will help with using ht and the enterprise or smp kernel? Thanks.
From,
Steven
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