Quality Learning Support For All
First time here? Checkout the FAQs!
x
MathsGee is Zero-Rated (You do not need data to access) on: Telkom |Dimension Data | Rain | MWEB

0 like 0 dislike
38 views
What is load average?
in Data Science & Statistics by Diamond (81,178 points) | 38 views

1 Answer

0 like 0 dislike

Linux load averages are "system load averages" that show the running thread (task) demand on the system as an average number of running plus waiting threads. This measures demand, which can be greater than what the system is currently processing. Most tools show three averages, for 1, 5, and 15 minutes.

These 3 numbers are not the numbers for the different CPUs. These numbers are mean values of the load number for a given period of time (of the last 1, 5 and 15 minutes).

Load average is usually described as "average length of run queue". So few CPU-consuming processes or threads can raise load average above 1. There is no problem if load average is less than total number of CPU cores. But if it gets higher than number of CPUs, this means some threads/processes will stay in queue, ready to run, but waiting for free CPU.

It is meant to give you an idea of the state of the system, averaged over several periods of time. Since it is averaged, it takes time for it to go back to 0 after a heavy load was placed on the system.

Some interpretations:

  • if the averages are 0.0, then your system is idle
  • if the 1 minute average is higher than the 5 or 15 minute averages, then load is increasing
  • if the 1 minute average is lower than the 5 or 15 minute averages, then load is decreasing
  • if they are higher than your CPU count, then you might have a performance problem (it depends)
by Diamond (81,178 points)

Related questions

0 like 0 dislike
0 answers
0 like 0 dislike
0 answers
asked Sep 5, 2019 in Data Science & Statistics by MathsGee Diamond (81,178 points) | 31 views
1 like 0 dislike
1 answer
asked Sep 16, 2020 in Economics and Finance by MathsGee Diamond (81,178 points) | 37 views
1 like 0 dislike
0 answers
asked Mar 12, 2019 in Drones by Edzai Zvobwo Bronze Status (8,650 points) | 48 views
0 like 0 dislike
0 answers
1 like 0 dislike
1 answer
asked Apr 27, 2020 in Physics by Joshua Mwanza Diamond (44,188 points) | 165 views

Join the MathsGee Answer Hub community and get study support for success - MathsGee Answer Hub provides answers to subject-specific educational questions for improved outcomes.



On MathsGee Answers, you can:


  1. Ask questions
  2. Answer questions
  3. Comment on Answers
  4. Vote on Questions and Answers
  5. Donate to your favourite users
  6. Create/Take Live Video Lessons

Posting on MathsGee


  1. Remember the human
  2. Behave like you would in real life
  3. Look for the original source of content
  4. Search for duplicates before posting
  5. Read the community's rules
MathsGee Tools

Math Worksheet Generator

Math Algebra Solver

Trigonometry Simulations

Vectors Simulations

Matrix Arithmetic Simulations

Matrix Transformations Simulations

Quadratic Equations Simulations

Probability & Statistics Simulations

PHET Simulations

Visual Statistics

MathsGee ZOOM | eBook