"Ingo Molnar's Completely Fair Scheduler has been merged into the Linux kernel for inclusion in the upcoming 2.6.23 release. A comment in the patch titled 'sched: cfs core code' noted, 'apply the CFS core code. This change switches over the scheduler core to CFS's modular design and makes use of kernel/sched_fair/rt/idletask.c to implement Linux's scheduling policies.' Another patch included documentation which described the new scheduler, '80% of CFS's design can be summed up in a single sentence: CFS basically models an 'ideal, precise multi-tasking CPU' on real hardware...'"