Microfreezes with 6600 GT

[Almindor]

I have GeForce 6600 GT AGP (asus) on freeBSD 6.2-BETA1 (yeah I know..)

I get microfreezes on any 3d application I try. It reminds of some buffer problem. The FPS are ok "between" but every ~1 second it simply "feezes" for about 1/3 of a second or so.

I tried using both agp drivers and also tried lagacy driver (which shouldn't work on 6.x but does hehe) but the results are always same.

Anyone knows what this might be?

[Almindor]

Just some additional info to my problem.

I also pasted this problem on bsdforums, and a discussion followd which made me post lots of info there. So if you need various logs or kernel sysctl here it is along with some "theoretizing"

http://www.bsdforums.org/forums/showthread.php?t=44394

[zander]

Does this problem reproduce if you disable AGP support?

[Almindor]

Hello again.

Sorry I forgot about this forum for a time, the problem was "kind of fixed" in the meantime.

It seems that certain gnome applets which test for net activity caused this. Each time they polled the OS it made these microfreezes (but eg: top didn't report much activity).

It's possibly a kernel weakness or driver problem or just very short spikes in CPU usage. I ktraced one of the applets and it did loads of syscalls in a loop each time which would cause some ugly context switches.

In any case, removing the problematic applets (gkrellm btw works ok so it's a design issue with the applets I guess) helped.