Make your ubuntu 10 times faster

[Jonathan N. Hindi]

Why don't you write it on our loco website loco.thelinuxer.net.
--
Thanks & Regards,
*Jonathan N. Hindi
*



On Wed, Nov 24, 2010 at 5:02 PM, Hussam Bebars <hus1007 at live.com> wrote:

> *Make your ubuntu 10 times faster
> *
>
> *
> *
>
> *Source *
>  <http://www.networkworld.com/community/node/68739>
>
> http://www.networkworld.com/community/node/68739
>
>
> Want to speed up your Linux desktop without compiling a new kernel? You
> don't need a 200-plus line patch for the Linux kernel when a couple of
> lines of Bash will do the trick<http://www.webupd8.org/2010/11/alternative-to-200-lines-kernel-patch.html>
> .
>
> A few days ago a kernel developer posted a patch to the Linux kernel<http://www.phoronix.com/scan.php?page=article&item=linux_2637_video&num=1>that changes the way the Linux "scheduler" works. For non-geeks, this is the
> way that the kernel hands off tasks to the CPU. This has been a topic of a
> lot of debate over the years, with kernel developers proposing dueling
> schedulers and sometimes storming off<http://en.wikipedia.org/wiki/Completely_Fair_Scheduler>when their proposal was rejected.
>
> So there was a lot of buzz and excitement when the patch from Mike
> Galbraith, clocking in around 225 lines of code, showed a dramatic
> improvement in desktop latency. All is well and good that the patch works,
> but it would be a long time before most Linux users would see an update. It
> won't be for a few weeks before it makes it into the mainline kernel, and
> six or seven months before it trickles down to users. Some users are willing
> and able to recompile their kernel, or willing to install patched kernels
> from third-party sources, but most users don't fall into those categories.
>
> Turns out, users don't *have* to wait if they're willing to make a few
> small modifications to their systems involving a few lines of Bash code<http://www.webupd8.org/2010/11/alternative-to-200-lines-kernel-patch.html>added to a system configuration file (/etc/rc.local) and a user's login file
> (.bashrc). That comes from Red Hat's Lennart Poettering.
>
> See the post on Web Upd8<http://www.webupd8.org/2010/11/alternative-to-200-lines-kernel-patch.html>for instructions on Fedora and Ubuntu machines. I've tried the second method
> on a machine running Linux Mint 10 (which is Ubuntu 10.10 based). In
> decidedly unscientific testing, it seems to produce an improvement in
> several areas — particularly when using Firefox or Chrome. I haven't yet
> tried the kernel patch yet, but according to Markus Trippelsdorf<http://lkml.org/lkml/2010/11/16/392>,
> the user-space changes reduce latency more.
>
> The immediate effect may be a speedup on the desktop for Linux users based
> on Poettering or Galbraith's approach. But even better, maybe this will kick
> off a new round of competing ideas on speeding up the Linux desktop.
>
> *Source
>
> *http://www.webupd8.org/2010/11/alternative-to-200-lines-kernel-patch.html
> *
>
> To use Lennart's solution in Ubuntu (not tested - thanks to Lsh for this),
> you have to replace "/sys/fs" with "/dev"*. So you would have to add the
> following commands in your */etc/rc.local* (open it with: *sudo gedit
> /etc/rc.local*) file,* above the "exit 0" line*:
>
> mkdir -p /dev/cgroup/cpu
> mount -t cgroup cgroup /dev/cgroup/cpu -o cpu
> mkdir -m 0777 /dev/cgroup/cpu/user
> echo "/usr/local/sbin/cgroup_clean" > /dev/cgroup/cpu/release_agent
>
>
> and make it executable:
>
> sudo chmod +x /etc/rc.local
>
>
> And then add the following to your *~/.bashrc* file (to open it: *gedit
> ~/.bashrc*):
>
> if [ "$PS1" ] ; then
>    mkdir -p -m 0700 /dev/cgroup/cpu/user/$$ > /dev/null 2>&1
>    echo $$ > /dev/cgroup/cpu/user/$$/tasks
>
>    echo "1" > /dev/cgroup/cpu/user/$$/notify_on_release
> fi
>
>
> Run the following command:
>
> sudo gedit /usr/local/sbin/cgroup_clean
>
>
> And paste this:
>
> #!/bin/sh
> if [ "$*" != "/user" ]; then
> rmdir /dev/cgroup/cpu/$*
> fi
>
>
> then save the file and make it executable:
>
> sudo chmod +x /usr/local/sbin/cgroup_clean
>
>
> And finally, restart the computer or manually run the /etc/rc.local file ("sudo
> /etc/rc.local").
>
>
>
> --
> Hussam Bebars
>
> --
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