simple 'live integration' tests

[whyrusleeping]

We need to start making some live integration tests on the network. Lets discuss some of those ideas here.

The first and (i think) easiest one to do, would be to spin up a node, add a random 16MB file (or directory), send that hash to another node, and then get it on that node (or even just curl it through the gateway). We should time the following things:

on our newly spun up node:

• init
• daemon start
• add

on the 'long running' network node:

• time to find providers
• time to connect to provider
• time to first block
• total time of operation

The following stats should also be logged:

• bandwidth usage (ipfs stats bw) throughout the operation (maybe a graph? idk)
  • per service, so we can see dht activity vs bitswap
• cpu load

A very simple first hack could be as easy as:

ipfs init -f
time ipfs daemon &
HASH=$(dd if=/dev/urandom bs=4M count=4 | ipfs add -q)
time curl https://ipfs.io/ipfs/$HASH > /dev/null