I'm getting very confused how to read Apache Bench data.
Apache Benching my local machine gives me wildly different numbers between my dev linode and my production linode. My dev server is a 512mb linode freshly cloned from my 2gb linode, which means all but a few settings (static IP settings) are the same.
My dev server gets about 2x RPS benching from the same machine at 1/4 the ram. Because its set up for a 2gb server, it's even starting to swap (swap usage: 30mb or so) and getting better response times.
My production servers gets half that.
Screenshot of ab, iotop, and cpu info
http://i.stack.imgur.com/2mczZ.png (can't post images and can't post more than 1 link!)
The command I'm running is:
ab -n 2000 -c 50 localhost:8080
Benching localhost should take the NETWORK out of the equation right?
From my desktop, both servers give me the same results because I can only download at 700Kb/s
How do I rule out differences in servers? The CPU is faster on the dev server?
Does it account for 2x rps? or are there settings that are adversely affected by more ram?
I can't tell if this is a real problem or if its just something like my production linode has higher load from the other VPSes / different hardware.
Thanks for your time!