Re: Scrolling Apps = High CPU Utilization
Quoting David Z Maze <firstname.lastname@example.org>:
> My guess is that you wind up doing the scrolling operation all in
> software with the nv driver, which is why you get that much CPU
> usage. I'd guess that switching to the (non-free) NVidia driver would
> in fact help you get around this problem. There's not much you could
> change in the kernel configuration to improve it, I don't think.
Out of curiosity I tried to duplicate the problem on a Windows box at work.
Turns out that on a 3.2GHz machine with 512MB RAM and a GeForceMX 5200 with 64MB
vRAM running Windows XP, a similar thing happens, although the utilization tops
out around 40%. I then tried it on an older box, PIII-733, also running Windows
XP. The result: approx. 90% CPU usage when rapidly scrolling.
So, I imagine that it's a result of my slightly slow hardware and, as you noted,
not using the proprietary nVidia drivers.