Use erlang:monotonic_time instead of os:timestamp
Use erlang:monotonic_time instead of os:timestamp

Avoids unnecessary calculations.

turtleDeng/cowboy,binarin/cowboy,Reimerei/cowboy,pap/cowboy,odo/cowboy,ninenines/cowboy,K2InformaticsGmbH/cowboy,rabbitmq/cowboy,kivra/cowboy,yangchengjian/cowboy,nviennot/cowboy,acrispin/cowboy,bobos/ecweb,CrankWheel/cowboy,imdeps/cowboy,hairyhum/cowboy,276361270/cowboy,dangjun625/cowboy,bsmr-erlang/cowboy,binarin/cowboy,noname007/cowboy,yangchengjian/cowboy,omusico/cowboy