Scaling based on average load

I want to scale my application (by opening a new droplet) based on the average load reading. Is it a good idea to use this approach? What will be a high load value for a 1 core droplet? Above 1? But for a 2 cores droplet will be above 2?

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It depends on what resources your application uses the most, e.g. RAM, CPU, Disk IOPS, etc. <br> <br>Unfortunately I don’t have experience with auto scaling however I’m sure you can create a bash script that reads the load averages and uses the bash script from that article to scale up if needed.

I have read the articles, but they are more focused on ‘how to scale’ then ‘when to scale’. I’m planning to move to DigitaOcean a php application that needs more processing power than a regular website. It is running on a dedicated server now but it becomes overloaded on traffic spikes. I need a scalable solution. I want to make the php app to be self-aware when the host is overloaded. I’m looking for a simple solution and I was thinking to use the server load averages but I’m not sure what value would indicate that the droplet is overloaded and based on this, to open a new droplet. My questions again: <br> <br>Based on the load averages, above which value should I open a new droplet? <br>Do you think I need more advanced monitoring tools for this or the server load average reading would be enough? <br>