How does no. of cores and memory affect a WordPress blog?

If you have text based WordPress blog running on LAMP with let’s say each post contains a greeting picture, there a few plugins, and a single user.

  1. How does number of processor cores and memory affects your install?
  2. How many visitors at a time can a $5 droplet handle?
  3. Is there an easier way for me to assess how many services I could run on my droplet?


I don’t know how, but your numbers of 80 concurrent connections to a 512MB VPS are exceptionally outstanding! Best i could achieve was 130 after further tweaking and testing!

If we go by your numbers you woudl be able to handle 80X4=320 concurrent connections on a 2GB VPS! I’m not sure how many Linux ninjas can achieve this!

I should add, a $5 Droplet does not run well with WordPress, which is why they disabled the one click install WP for the $5 plan.

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  1. It simply makes response times faster or slower. With small sites you probably won’t need over a $10/month Droplet, but as they grow you may need to expand, in order to cope with users (see 2)

  2. If you’re expecting a lot of traffic… not so many people. It depends on the bandwidth, but this test should give you a feel for it. simulates a lot of users and bandwidth at a single time, and a $5 droplet lasted 1 minute with 82 successful clients (simulated). Of course, this was a fairly larger blog tested than what you describe, but if you’re expecting traffic in the upper hundreds/thousands you may need a bigger one. For personal and small-scale blogs however, a $5 Droplet should do just fine. Of course, this depends on the plugins you have on WordPress as well, if you have caching plugins (WordFence works quite well) and maybe Cloudflare, your site can last much longer.

  3. For just simply load testing webpage purposes, you could try and see how long your services last.