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Slow perfomance on linux (Ubuntu Dapper)
Game_Ender:
I gave it a try with sysprof and most of the time was spent acutally in pango. I should try it again and compare to scite to see what the difference is. Most of the time there is noticeable lag, its not the kind where you type faster than text appears, but its still there.
Sysprof is was pretty easy to install in Ubuntu. You should have it in the debian repositories as well.
I would be interested to hear if Mandrav has the problem since he developes on Ubuntu. Maybe his machine is fast enough that it doesn't max out the CPU.
Quick question Jabber, are you using custom font colors?
Jabber:
--- Quote from: Game_Ender on August 14, 2006, 11:40:00 pm ---Quick question Jabber, are you using custom font colors?
--- End quote ---
No, I'm not.
If I got some time left on the weekend I'll give sysprof a shot.
Jabber:
Good news, everyone :D
I installed sysprof and was ready to start profiling when I noticed the slow editor problems no longer were there. I profiled anyway and found a substantial time was spend in libcairo for font rendering. A new version of libcairo (1.2.2) entered Etch yesterday (or was it the day before?), so I suspect something was fixed upstream by the cairo devs.
So, anyone with slowness problems should try to update libcairo to a version >=1.2.2.
Jabber
Game_Ender:
Have you downgraded libcairo and tried again, just to double check. I will try this when I get a chance, I guess it will fininally give a reason for me to learn how to build a source package on Ubuntu.
EDIT: It turns out 1.2.2 is in the next version of Ubuntu, Edgy Eft, but I don't want to run something as unstable as that on my laptop which can't have its drivers breaking all the time. So if I build another desktop I will give it a try on there.
Jabber:
Lots of packages depend on the latest version of libcairo, so I'll restrain from downgrading -- I don't want to break my main desktop...
I'm not sure if it was just libcairo's fault, because others like you use older versions without having the slowness problem. Anyway, it was solved for me by upgrading, so hopefully it helps others, too.
Jabber
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