Yes ,hyperthreading will work but unless youre going to use Fedora Core...You will need to re-compile the kernel, same with acpi..you need to build a custom kernel typicaly if you want to use bleeding edge features...

Could you post a quick and dirty howto? I ccompiled my kernel with acpi and smp, but only show one cpu in my /proc/acpi/cpu. If I understand right, I should have two, CPU0 and CPU1 if HT is working.

(A .config would be sufficient if you have it up and running on your system)
thank you

What's your kernel and distribution?

Gentoo

2.6.0-test9 patched by Andrew Morton

Even if your not using this kernel/distro I could figure it out with a .config

thanks

James

does anyone actually have SMP running on the 5150 now?
if so,
what distribution, kernel, and please send the .config
file

/boot/grub/grub.conf

Append=acpi=off smp=on

grub.conf

title my title
kernel (hd0,0)/boot/2.6.0-test11 root=/dev/hdc2 ide=66 vga=0x31A video=vesa:ywrap,mtrr acpi=off smp=on noresume


^^^^^all on one line, of course.
output of: ls /sys/devices/system/cpu -----> cpu0


.config: Symmetric multi-processing support enablem, maximum number of cpu's (2-255): 8

SMP not working.
Please post your .config and grub.conf with kernel version.

Thank you.

# kernel-2.4.20-i686-smp.config

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y

#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_KMOD=y

#
# Processor type and features
#
CONFIG_SMP=y

#
# General setup
#
CONFIG_NET=y
CONFIG_HOTPLUG=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_NR_CPUS=8
CONFIG_MAX_USER_RT_PRIO=100
CONFIG_MAX_RT_PRIO=0

Thanks alot. I have a hunch the problem lies in the 2.6 kernel.

---

@memoores wrote:
does anyone actually have SMP running on the 5150 now?
if so,
what distribution, kernel, and please send the .config
file

---

I just recieved my 5150 last week, and I promptly formated and repartitioned to make room for SUSE 8.2 (Personal), that didn't go so well, it would boot in the first time and never again. Then I tried Fedora which I couldn't even install due to the graphics being seriously distorted in Anconda. So yesterday I did an FTP install of SUSE 9.0 and it works wonderfully and it has the SMP enabled kernal active by default.

Kernel version?

2.4.21-144-smp4G
i686

would it be possible for you to run some benches with and without smp enabled so we can see the difference it makes.....I don't wan to downgrade my kernel unless it pays. :)

Its really not that big of a deal...Unless you're doing video or 3d rendering...or running your laptop as a server....It could also create problems with some applications...like games and whatnot
you're looking at a 2 to 5% speed boost if at all...the only plus is that when hyperthreading was new ...some apps actually slowed down...now at least the apps that did that will at least be as fast as the were without hyperthreading....to me...it's more of a bragging right than anything...Plus I believe it's just a precursor for developers to get ready for the actual dual core pentiums...

On my Inspiron 5150 Hyper Threading is working perfectly. I am using a gentoo (http://www.gentoo.org) distro with a custom built 2.6 kernel. I included support for SMP and ACPI in the kernel. It works beautifully. The kernel has built in support for the Broadcom NIC, but I had a few problems with the NVIDIA drivers. They provide a script to compile the module on your system which works fine on 2.4 kernels but not 2.6. Thankfully someone http://minion.de provided patches for the 2.6 kernel which worked perfectly on my system.

The statistics I have seen online (though I have not attempted to duplicate), are up to a 30% increase in processing speed on the 2.4 kernel and up to 50% on the 2.6. I'm sure that it depends heavily on what your doing however.

Message Edited by Mad_Jester on 01-08-2004 01:00 AM

Message Edited by Mad_Jester on 01-08-2004 01:03 AM