View Full Version : [all variants] increase performance with low-latency kernel

May 9th, 2009, 12:39 PM
Hi all !
After testing the newly released jalopy, I've been annoyed by the poor responsiveness under X. I remembered I used to install low-latency kernel version. And surprisingly there are not available anymore for jalopy.

Before any details, here are the packages compiled for those how don't want to compile the kernel yourself :
You'll just need to download files and the do a

sudo dpkg -i *.deb
on downloaded files.

I've thus recompiled this low latency kernel.

apt-get install linux-source-2.6.28 kernel-package build-essentials
cd /usr/src
tar zxvf linux-source-2.6.28.tar.gz
cd linux-source-2.6.28
cp /boot/`uname -r`/config-* .config
make menuconfig
> ticked preemtible kernel
> unticked generic x86
> ticked core 2
> ticked 1000hz frequency for system tick
make-kpkg --stem linux --bzimage --revision="0" --append-to-version="-low-latency" --initrd kernel_image kernel_headers
cd ..
Then install generated packages (headers and image).

dpkg -i linux-*.deb
then after compilation, I've just had troubles with nvidia under DPMS that reported "error 20"

Hopes it increases your ubuntu experience :)

May 9th, 2009, 01:14 PM
I'm currently uploading files, please wait 'til 3-4 pm before downloading files ...