What is interrupt latency? - Definition from WhatIs.com

Definition

interrupt latency

Part of the Computing fundamentals glossary:

Interrupt latency, also called interrupt response time, is the length of time that it takes for a computer interrupt to be acted on after it has been generated. In most computers, a trade-off exists among interrupt latency, throughput, and processor utilization.

An interrupt is a signal from a device attached to a computer, or from a program within the computer, that tells the OS (operating system) to stop and decide what to do next. Factors that affect interrupt latency include the microprocessor design (or architecture), the microprocessor clock speed, the particular OS employed, and the type of interrupt controller used. Minimum interrupt latency depends mainly on the configuration of the interrupt controller, which combines interrupts onto processor lines, and assigns priority levels to the interrupts. Maximum interrupt latency depends mainly on the OS.

This was last updated in September 2012
Contributor(s): Stan Gibilisco
Posted by: Margaret Rouse

Related Terms

Definitions

  • Cray Inc.

    - Cray Inc. is a pioneering computer company that was founded as Cray Research in 1972 by Seymour Cray, who is known as the father of the supercomputer. (WhatIs.com)

  • DOS

    - DOS (Disk Operating System) can refer to a computer operating system that is loaded from a disk drive or to an operating system based on Microsoft Disk Operating System (MS-DOS). (SearchSecurity.com)

  • supercomputer

    - The first commercially successful supercomputer, the CDC (Control Data Corporation) 6600 was designed by Seymour Cray. Released in 1964, the CDC 6600 had a single CPU and cost $8 million — the equi... (WhatIs.com)

Glossaries

  • Computing fundamentals

    - Terms related to computer fundamentals, including computer hardware definitions and words and phrases about software, operating systems, peripherals and troubleshooting.

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question. Find an Answer.Powered by ITKnowledgeExchange.com

Ask An IT Question

Get answers from your peers on your most technical challenges

Ask Question

Tech TalkComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.