tree 61ff8e64a20f97826e906d054cf00a0723964077
parent ffa04cc24b045e010c3020e2cbb8ce31cbec8895
author Rich Lane <rlane@bigswitch.com> 1396721960 -0700
committer Rich Lane <rlane@bigswitch.com> 1396747158 -0700

loci: lazily zero wire buffer

Previously we zeroed the entire wire buffer when it was allocated. This was
wasteful because often the message didn't grow to fill the entire allocated
size, and the memset was consuming 80% of CPU time during one of my benchmarks.

With this change, we only zero memory right before giving it to the user.
Additionally, of_octets_t fields like packet-in data aren't zeroed at all.