Sorry for the spam. There's been a flame^H^H^H^H^Hthread over on lkml about CFS and SD schedulers, and Ingo's tested Quake3 on Wine using both: http://kerneltrap.org/node/14023
Someone else tested UT2004 with both as well, and there are pretty pictures: http://people.redhat.com/mingo/misc/cfs-vs-sd-wine-quake.jpg http://people.redhat.com/mingo/misc/cfs-sd-ut2004-perf.jpg
Happy hacking, --Juan