Jeremy Fitzhardinge wrote: >> How is time quantum getting stolen less important? Time quantum >> getting stolen results directly in more unnecessary context switches >> since we might steal the entire timeslice before the process even ran. > > It doesn't matter why you didn't get the time;
Oh, but it does. System administrators can use steal time the same way they use iowait time: to spot bottlenecks on their systems. If you have a lot of iowait time, you know you want either faster IO or more memory. If you have a lot of steal time, you know you need to spread your virtual machines over more CPUs. Steal time allows you to see the difference between a busy system and an overloaded system. -- Politics is the struggle between those who want to make their country the best in the world, and those who believe it already is. Each group calls the other unpatriotic. _______________________________________________ Virtualization mailing list [email protected] https://lists.osdl.org/mailman/listinfo/virtualization
