100% CPU Usage Bug for me under Linux with 4 x 5870 with Catalyst 11.11 fixed !
Finally.
Not for me.
Ubuntu 11.10 64 bits
Catalyst 11.11
CGMiner 2.0.8
CGMiner consumes 120% of my CPU (core2 duo).
I'll fallback to Ubuntu 11.04 + Catalyst 11.6 + AMDAPPSDK v2.4 and CGMiner 2.0.6.
Best,
Thiago