12 Linux for IBM System z9 and IBM zSeries
specific instances (the device minor number). With 2.6, up to 4095 device
types can be connected. Each device type can now support more than 1
million connected instances.
We look at other performance and scalability improvements in 2.6:
The new Linux process scheduler
System swap setting
Kernel preemption
Fast user-space mutual exclusion
I/O performance and scalability enhancements
I/O schedulers
Extended attributes and access control lists
Memory management enhancements
Native POSIX Threading Library
NFS version 4
2.2.1 The new Linux process scheduler
The Linux 2.6 kernel implements a major rewrite to the process scheduler. Often
referred to as the
O(1) scheduler, the new scheduler requires ...