100% usage of CPU in first 20 minutes every hour - Magento CE 1.9

[Aspirastore]

Hello

I am running Magento 1.9.4.0 on Google Cloud Platform. I am experiencing a problem of low time loading on navigating on website.

Investigating on server profile, I've seen every 20-25 first minutes of every hour, CPU usage goes to 99/100%. I attach a screen here under.

Settings are with 1 CPU and 5,5 GB ram.

Some one has an idea of what should be checked?

Thank you

Igor Pizzinato

Aspirastore.com

[neuro]

First, I would check crontasks & reindexation manually with magerun.
And try to find issues like slow iops / mysql strange requests...

[Aspirastore]

Hi neuro,

thank you so much for your answer.

Anyone to suggest that could check this things for me? I am not programmer

[neuro]

The person who has developed / installed your site should be able to do it.
Magerun is easy to use & install : https://github.com/netz98/n98-magerun
U can monitoring in realtime with htop & mytop when u try to reindex.

n98-magerun.phar index:reindex:all

n98-magerun.phar sys:cron:history

n98-magerun.phar sys:cron:list

n98-magerun.phar sys:cron:run [--schedule] [job]