0

So I have htop running on my RHEL 7.5 64-bit and noticed something I've not seen before.

I have 4-core and it shows that the % used fluctuates but never over 95% for each one.

However, when I look at the CPU% column, it varies greatly from 92% to even 307% over time.

[![enter image description here][1]][1]

It's mostly mysql.. is that normal?

Thanks

  • 1
    Do you expect mysql to be running on the system? And do you expect it to be doing some work? – Jeff Schaller Nov 28 '18 at 18:12
  • cpu% is the used across all cores, so maxing 4 CPUs would be 400%. – jordanm Nov 28 '18 at 18:30
  • 1
    Please, don't post images of text. – Kusalananda Nov 28 '18 at 18:54
  • For illustrative purposes.. thank you everyone.. that is what I thought as well.. spread over 4 cpu's and added – Lawrence Nov 29 '18 at 0:15
1

Your mysqld process is utilizing multiple cores. As @jordanm pointed out in the comments 4 CPUs (cores) results with 400% CPU to use.

72.1% + 71.9% + 18.4% + 3.2% = 165.6%. Which encompasses the ~163% being utilized by mysqld. Obviously, other processes are using the CPU too causing the math above to be more than 163%.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.