[qdr] 2-router TCP soak test success

[Michael Goulish <mg...@redhat.com>]

Both routers survive 14 million HTTP-over-TCP test.
*1000 requests per second for 4 hours*, no problems except slow memory
growth.

One router on one box, one on the other. 40 Gbit link between them.

On send side: 'hey' load generator doing 100 parallel workers, each at 10
requests per second. Each test is 60 seconds, then repeat in semi-infinite
loop.

On receive side, nginx server running 64 parallel worker threads.

Average *latency* measured by 'hey' *did not change* over duration of test.


Unfortunately I keep making mistakes in setup.  First, could not query with
qdstat.  Then realized my code was all a week old.

Now running again, hopefully for much longer than 4 hours. Recording memory
growth with 'top', and hope to query router with qdstat -m.