Quote: hardware timer interrupts are expensive; context switch, highest priority, poor cache locality

Quotation Skeleton

Unfortunately, using hardware interrupts for fine-grained event scheduling … the system has to save the context of … hardware interrupts are usually assigned the highest priority … the data and instructions touched by the interrupt … For instance … the total cost of a timer interrupt in … it is unacceptable when interrupts need to be … [p. 207] the results indicate that hardware timer overhead … the on-chip APIC device found on PIII CPUs …   Google-1   Google-2

Copyright clearance needed for quotation.

Related Topics

Topic: hardware vs. software (15 items)
Topic: hardware for interprocess communication (31 items)
Topic: interrupts (25 items)