Exam (elaborations)
Seminarie 3 - OSPP (1)
- Course
- The Chimpanzee
- Institution
- The Chimpanzee
Seminarie 3 - OSPP (1)
[Show more]
Content preview
Seminarie 3 - OSPPSelects which process in the ready memory queue should be executed next, and allocates the
cpu to it - ANS-What is the overall purpose of the short-term scheduler (aka CPU scheduler)?
Decides if a new process should be put in the ready queue or put into secondary storage (ex.
hårddisk). Readykön kunde inte vara så stor, man använder en job pool in secondary storage. -
ANS-What is the overall purpose of the long-term scheduler?
Fungerar som en LTS men kan också ta processer från ready queue till secondary storage.
Flyttar alltså processer mellan ready queue och secondary storage åt båda håll - ANS-What is
the overall purpose of the medium-term scheduler?
Multiprogramming maximizes CPU utilization. The % of time the CPU is executing user level
process code. Maximize - ANS-Define CPU utilization and state the if the goal is to minimize or
maximize the metric
Number of processes that complete their execution per time unit. Maximize - ANS-Define
throughput and state the if the goal is to minimize or maximize the metric
Amount of time to execute a particular process. Minimize - ANS-Define turnaround and state the
if the goal is to minimize or maximize the metric
Amount of time a process has been waiting in the ready queue. Minimize - ANS-Define
waitingtime and state the if the goal is to minimize or maximize the metric
Amount of time it takes from when a request was submitted until the first response is produced.
Minimize - ANS-Define responsetime and state the if the goal is to minimize or maximize the
metric
En tid då CPU gör grejer oavbrutet - ANS-What is meant by CPU burst?
En tid då I/O svarar - ANS-What is meant by I/O burst?
An CPU-bound process spends more time doing computations and is characterized by few very
long CPU bursts. - ANS-What characterizes a CPU bound process?
An I/O-bound process spends more time doing I/O than computations and is characterized by
many CPU bursts. - ANS-What characterizes an I/O bound process?
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller topgradesdr. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$11.45. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78998 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now