tree b3372464e33bcaac65d6c9ff27d05d15808bba27
parent 7b12b1360365da86e5c6349baa119028d70931c8
author Lorenzo Colitti <lorenzo@google.com> 1459412135 +0900
committer Lorenzo Colitti <lorenzo@google.com> 1459412423 +0900

If we read no packets, try again after 10ms.

This might help reduce flakiness under heavy load. It
increases the runtime of multinetwork_test from ~16s to ~26s, but
if it fixes the flakiness issues, then we can look at reducing
the 10ms sleep to something shorter.

Change-Id: Ie2b5a28a286ade0979e9b3f0086924495a1058ce