I’ve been following a thread in the forums that refers to a very simple change in Ubuntu that actually is improving the responsiveness of many Edgy and Feisty users (including me).
I have no idea why this is, or if it has any side effects, to be careful.
Edit your “/etc/hosts” file:
$ sudo gedit /etc/hosts
You should see something like this:
127.0.0.1 localhost
127.0.1.1 martin-laptop
(and if your in Feisty, some lines about IPV6
Now, add the following:
127.0.0.1 localhost martin-laptop
127.0.1.1 martin-laptop
(Replace “martin-laptop” with your hostname)
Save. Should work instantly, or sometimes on reboot.
The forum thread is: http://ubuntuforums.org/showthread.php?t=388765.
Martin Albisetti's blog 
12 responses to “Performance tip for Edgy and Feisty users”
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also see the bug report
https://launchpad.net/bugs/94048
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thanks for the tip. I’ll report on what I notice on my machines. hopefully it’ll be significant.
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Martin… before I try this, What exactly does it do ? And, does it matter that I am using Kubuntu ? or not ?
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Eddie, I don’t think it matters what flavour of Ubuntu you are using.
I’m not 100% sure of what it does, but the forum thread has some indications: http://ubuntuforums.org/showthread.php?t=388765
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Also, don’t forget to use gksudo when running gedit.
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I have those lines on IPv6 with Edgy as well. Don’t know if this tip actually helped me or not, but I figure that it can’t hurt.
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im still using dapper drake and my /etc/hosts looks exactly as you showed after being modified (even with the ipv6 lines.)
and i always had the same performance..
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This only applies for edgy and feisty, which is where this change was introduced.
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