Improving resume speed

Chow Loong Jin hyperair at
Wed Feb 25 15:40:14 UTC 2009

On Sat, 2009-02-21 at 14:48 -0500, Mackenzie Morgan wrote:
> On Saturday 21 February 2009 11:23:32 am (``-_-ยดยด) -- BUGabundo wrote:
> > Jaunty had/has the objective to have a fast startup (<25 secs),
> > But the current technique to resume hibernated machines (using the kernel 
> mode) is too slow, and doesnt use compression.
> > pm-utils (pm-hibernate via s2disk) currently does this, and have a much 
> nicer UI (it shows progress), but unfortunately it got broken last weekend on 
> jaunty [1].
> Kernel modesetting for graphics was mentioned as a possibility for Karmic.  
> That should make the flicker time for graphics after resuming from suspend 
> shorten considerably.
I actually think flicker time for graphics is the least of our concerns
regarding resume time. It is true that it does flicker in Intrepid, but
that lasts at most 5 seconds, compared to the minute and a half I have
to wait for my system to pull its RAM out of the swap using the kernel
mode. s2disk does this in 20 seconds, inclusive of flicker time. 
Chow Loong Jin
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