'Soft timers' presentation slideshows

Real-Time Concepts for Embedded Systems

Real-Time Concepts for Embedded Systems. Author: Qing Li with Caroline Yao ISBN: 1-57820-124-1 CMP Books. Chapter 11 Timer and Timer Services. Outline. 11.1 Introduction 11.2 Real-Time Clocks and System Clocks 11.3 Programmable Interval Timers 11.4 Timer Interrupt Service Routines

714 views • 54 slides

Soft Timers Efficient Microsecond Software Timer Support for Network Processing

362 views • 24 slides

Jimi Watson

Supporting Time-Sensitive Applications on a Commodity OS by Ashvin Goel, Luca Abeni, Charles Krasic, Jim Snow, Jonathan Walpole. Jimi Watson. Why?. Time sensitive applications Enhancing resource allocation Throughput Insignificant degradation. Four keys. Timing mechanisms Timer latency

361 views • 21 slides

Soft Timers: Efficient Microsecond Software Timer Support For Network Processing

Soft Timers: Efficient Microsecond Software Timer Support For Network Processing. Mohit Aron and Peter Druschel Rice University. Presented by Reinette Grobler. Managing I/O and other events. Asynchronous via Interrupts Pro: Low latency - occurs immediately after event

155 views • 13 slides

CS533 Concepts of Operating Systems Class 10

CS533 Concepts of Operating Systems Class 10. Fine Grain Timing. Questions. What is the main source of overhead for periodic hard timers? Why does it help to use soft timers? How frequently do soft timers fire? What if the application doesn't make any system calls?

174 views • 6 slides

CS533 Concepts of Operating Systems Class 18

CS533 Concepts of Operating Systems Class 18. Fine Grain Timing. Questions. What is the main source of overhead for hard timers? Why does it help to use soft timers? How frequently do soft timers fire? What if the application doesn't make any system calls?

194 views • 6 slides

CS533 Concepts of Operating Systems Class 17

CS533 Concepts of Operating Systems Class 17. Fine Grain Timing. Questions. What is the main source of overhead for hard timers? Why does it help to use soft timers? How frequently do soft timers fire? What if the application doesn't make any system calls?

203 views • 6 slides

CS533 Concepts of Operating Systems Class 17

CS533 Concepts of Operating Systems Class 17. Fine Grain Timing. Questions. What is the main source of overhead for hard timers? Why does it help to use soft timers? How frequently do soft timers fire? What if the application doesn't make any system calls?

80 views • 6 slides