Hi Guus, Yes, BIOS setting is enabled. The ONLY thing that I haven't done is edit lilo to include the acpismp=force setting. Did you set that to make it work? Does it work without it (ie. SMP enabled WITHOUT modifying lilo)?
Thanks. ----- Original Message ----- From: "Guus Houtzager" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, 06 September, 2003 5:08 PM Subject: Re: SMP on Debian server with Hyperthreading > Hi, > > On Fri, 2003-09-05 at 17:06, Jason Lim wrote: > > Hi all, > > > > Just wondering... I've got a 2.4Ghz Hyperthreading (100% it is the > > hyperthreading model), and the BIOS sees it. > > I have a 3.06 GHz P4 on an I845G chipset and in the BIOS I had to switch > the HT option from disabled to enabled. So is it actually on in your > BIOS-settings? > > > I then compiled the kernel... the usual, except added the SMP support > > setting "Symmetric multi-processing support". Nothing else was changed. > > > > Compiled it, liloed it... it's running it: > > > > # uname -a > > Linux megalith 2.4.22 #8 SMP Thu Aug 28 14:44:13 HKT 2003 i686 unknown > > > > However, > > That's correct. > > > # mpstat -P > > Not an SMP machine... > > > > And in top i don't see the multiple CPU usage.... > > This does work on my setup. I'm running 2.4.22 now, but it worked with > 2.4.20 aswell. > > > this is all strange. For Linux, aren't Hyperthreading CPUs suppose to act > > like completely separate independent CPUs (this was suppose to change in > > 2.6... but for 2.4, they can't tell the difference, right?). > > > > Hope you can advise... as hyperthreading is there but not being used, > > which is a waste and could add performance. > > My machine is a workstation, so I don't know what would happen with > typical server software (ie apache, database) but for instance compiling > a kernel with 3 simultaneous threads is about 20% faster than using only > 1 thread. > > > Thanks in advance! > > Hope this helps! > > > Jas > > Regards, > > -- > Guus Houtzager Email: [EMAIL PROTECTED] > PGP fingerprint = 5E E6 96 35 F0 64 34 14 CC 03 2B 36 71 FB 4B 5D > "A)bort, R)etry, I)nfluence with large hammer." > > > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > > -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
