[paromi]

I have 2 wordpress sites on a DO 5$ instance. I had 1-10 visitors a day on the sites and had no problems. The setup is nginx +php5-fpm + w3 super cache + cloudflare I starter getting about 300 visitors a day for one site and i have noticed the site sometimes was showing blank pages. I was also getting timeout from cloudflare, and the site was moving very slow. Tried to disable the cache plugin but it was the same.

I have upgraded to the 10$ instance, and still could barely navigate in the wp admin area..

This took 2-3 days, now the site looks to be ok (traffic has dropped to 150 day), i think it was a memory issue with their server..

Also if i do a : ab -n 500 -c 200 http://site.com from another server my site stops working..

[luxpir]

If it wasn't the memory issue, then systematically check your plugins for ropey code, and deprecated calls etc. There's plenty of debugging in the logs and plugins to be had. 300 users really shouldn't trouble the server; something has to be misconfigured?

[paromi]

I have fixed it.. I have enabled in w3 total cahce plugin to use APC for the page cache

[mipapage]

Are you using APC +/or memcached?

[paromi]

I have APC

[mipapage]

The object-cache (with APC or MEM) seems to take a decent load off of my droplet. One of the sites doesn't seem to work with the OC, and it is notably slower than the others.