USENIX Technical Program - Abstract - USENIX Annual
Conference, Freenix Session - June 2000
Efficiently Scheduling X Clients
Keith Packard, SuSE Inc.
The X server is charged with providing window system services to many
applications simultaneously, and needs a scheduling mechanism to
distribute it's limited resources among these applications. The original
scheduling mechanism was simplistic and caused graphics-intensive
applications to starve interactive applications.
A new scheduling mechanism has been designed which fairly distributes
time among the requesting applications while at the same time increasing
performance by a small amount. Descriptions of the original and new
scheduling mechanism and empirical measurements demonstrating the
effects of scheduling within the X server are included along with a
discussion on how the design was arrived at.