How microprocessors handle interrupts:interrupt management

Intetrrupts are made asynchronously to the main code which is executed whereas polling is performed syncronously to the application being executed. The main advantage of interrupts are that they give a short reponse time if we assume that several interrupts are not made at the same time. In realtime systems which must respond to events very fast interrupts must be used to achieve a quick enoguh response.

The three disadvantages of interrupts are:

1. They require extra hardware, especially if interrupt management is to be done outside the processor.
2. Each time an interrupt is made, a time is needed to handle the interrupt. This ammount of time is called overhead.
3. The interrupt routine is exected aschynorously to the the main thread which means that it’s diffciult to know how much memeory that needs to be allocted for interrupt management.

Read other people’s blogs about on Technorati about: , , , , ,

Läs även andra bloggares åsikter om: , , , , ,

Writen by: Rikard Grossman-Nielsen,
ITService-GNR (ITTjänst-GNR),
Technorati token: F6U8ZD2JJGDG

Tags: , , , ,

4 Responses to “How microprocessors handle interrupts:interrupt management”

  1. Aline Says:

    good post. thank for sharing.

  2. image consultant training Says:

    My spouse and I absolutely love your blog and find nearly
    all of your post’s to be just what I’m looking for. Does one offer guest writers
    to write content for you personally? I wouldn’t mind composing a post or elaborating on a lot of the subjects you write concerning here. Again, awesome web site!

    • rikardit Says:

      When it comes to guest writers It depends. But If you send me articles or suggestions for example more elaboratore articles on how microprocessors work or linux or other subjects which fit into the blog I will certainly consider it. If you want to connect with me and exchange ideas on computers and possible future articles. Please send me an email or connect with me on LinkedIn or Google+. Looking foward to hear from you.
      Regards Rikard

  3. ubuntu Says:


    […]How microprocessors handle interrupts:interrupt management « rikardit[…]…

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: