[ubuntu-x] Xorg.0.log timestamps

[Tormod Volden]

On Mon, Feb 9, 2009 at 6:36 PM, Bryce Harrington <bryce at canonical.com> wrote:
> Yes, this is exactly why I am curious about the Gnome startup time,
> because last week at the Canonical sprint there was definite interest in
> ideas for boot performance improvements.  Several people asked about
> improving X boot time, however at <2 sec already (well, mine booted in

On my desktop I can restart X (everything cached in RAM that is) in <
1s. Of course if a fresh start takes much more time, it can mean it is
reading a lot from disk and there would be room for real startup
performance improvements. But at least it's not spending 10s probing
video outputs etc like a few years ago.

It's a bit of a blame game also, why try to cut .5s in X when gnome
takes 30s, we can say. One Gnome developer would say why try to cut 1s
in my module when the other modules take 28s. And so on.

> 3.3 sec), there is not going to be much to squeeze out there, so if
> there are other areas with more substantial room for improvement, I
> think bug reports, ideas, and patches would stand a good chance of
> getting attention right now.

I remember seeing some recent Gnome analysis, some kind of blog in
three parts. It was linked from planet.ubuntu.com I think (which
unfortunately does not have a backlog and can not be searched). I can
only find this old stuff now:

http://www.gnome.org/~lcolitti/gnome-startup/analysis/
http://bmaurer.blogspot.com/2006/07/today-in-performance.html

I am crossposting this to the almost-secret ubuntu-boot ML, which has
way too little activity :) Maybe getting the community more involved
would be worthwhile. There is the spec page
https://wiki.ubuntu.com/FoundationsTeam/Specs/BootPerformance and some
older wiki pages like https://wiki.ubuntu.com/FasterBootProcess but
maybe something more inclined to discussion and suggestions could be
created. What about a forum where people can suggest things to improve
and developers can post things to test? Or should ubuntu-boot be used
for this?

Tormod