Hello, I've been trying to solve an issue at my VPS. The VPS runs WHM optimized with CL and has 3 x 2.5 Ghz CPU cores. A total of 6 GB of RAM + 1 of Swap. My load averages are something like: 0.19 0.13 0.11. I tested the HD and got this great result: Code: [~]# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync 16384+0 registos dentro 16384+0 registos fora 1073741824 bytes (1,1 GB) copiados, 2,89149 s, 371 MB/s However all my websites take about 4 to 5s to open, I'm on a optic fiber internet and I don't have any issues with other websites. Here is my Apache status: Code: Current Time: Saturday, 18-Jul-2015 17:52:34 CEST Restart Time: Sunday, 21-Jun-2015 16:54:32 CEST Parent Server Config. Generation: 41 Parent Server MPM Generation: 40 Server uptime: 27 days 58 minutes 2 seconds Server load: 0.09 0.11 0.09 Total accesses: 8446099 - Total Traffic: 389.1 GB CPU Usage: u509.92 s496.77 cu.7 cs.5 - .0431% CPU load 3.62 requests/sec - 174.6 kB/second - 48.3 kB/request 8 requests currently being processed, 53 idle workers I enabled OPCache and I noticed that as soon as a website is on cache, it opens instantaneously, however if the cache is disabled it takes 4-5 seconds. I notice this performance issues with all websites, most of them are simple Wordpress installations without plugins or anything that could actually cause real issues. How can I find the cause of this issue? And fix it? It looks like the I/O performance is good and apache has enough workers to take care of things, however it doesn't work fine. Thank you.