I am not sure where to put this, but we have a webserver we are trying to stress test with apache benchmark on ubuntu 14.04 server edition. Our output traffic is only 900KBps, which is tiny and our webserver passes with flying colors. But part of our goal is to find out the breaking point of the server.
I know it's not our CPU or RAM because by monitoring htop and I can see that everything is fine. Via bmon I can see our output fluctuates around 900 ~1000 KBps.
Via ethtool I can see that I can support a speed of 1000Mbps or 125MBps. So I am not sure why this is happening.
I am also trying to adjust the kernel of tcp port reuse (the troubleshooting section)
but still get the same result.