Measure impact of TechEmpower server settings in Cloud environment

[mikeharder]

TechEmpower modifies several OS settings in their test environment. Currently, our Cloud environment uses the default values for these settings. We should consider enabling them if the impact is measurable and we think it would be common for customers to enable them.

sudo sysctl -w net.ipv4.tcp_max_syn_backlog=65535
sudo sysctl -w net.core.somaxconn=65535
sudo -s ulimit -n 65535
sudo sysctl net.ipv4.tcp_tw_reuse=1
sudo sysctl net.ipv4.tcp_tw_recycle=1
sudo sysctl -w kernel.shmmax=134217728
sudo sysctl -w kernel.shmall=2097152

https://github.com/aspnet/benchmarks/pull/280#pullrequestreview-58425816