At start blender takes 0.3 % of CPU. But after pressing Alt-A (play animation) and Esc (stop playing) Blender slows down and takes 20% of CPU time even scene is empty. Then CPU load slowly increase till Blender gets 100% of CPU.
After saving and restoring Blener takes 0.3% CPU again.
When I start playback by pressing play button in timeline window Blender didn't slows down.
I tried to compile and run Blender under Debian Linux on same box. Blender runs smooth.
But when I ran binary compiled in Debian under Gentoo bug appear again.
I think this bug appear only with Gentoo distribution. Can somebody help me fix it? I can debug Blender if yo give detailed instructions.
CPU: Athlon XP 2500+
MB: ABit KV7
OS: Gentoo Linux 2005.1 Optimazed
Kernel: 2.6.13-gentoo-r5
I tried to switch video driver to vesa and opengl to xorg-x11. Same results.
Changing window mananger do nothing to.
Seems bug in library dependences.
Tommorow I'll try to update my system. Might be this helps
Maybe your make.conf have some weird flag.
Try dowloading the official build from b.org
If you builded your system with wrong flags, it can't be helped...
here is mine, I have a P4:
CFLAGS="-O2 -march=i686 -fomit-frame-pointer -pipe"
CHOST="i686-pc-linux-gnu"
CXXFLAGS="${CFLAGS}"