tree 566117d2efeed25f4a15a85208ffb18654373030
parent 80512b186fd7f4ef3bc7d9c92b281c549d72aa8a
author Willy Tarreau <w@1wt.eu> 1540730676 +0100
committer Willy Tarreau <w@1wt.eu> 1540730807 +0100
encoding latin1

MINOR: stream: don't prune variables if the list is empty

The vars_prune() and vars_init() functions involve locking while most of
the time there is no variable at all in streams nor sessions. Let's check
for emptiness before calling these functions. Simply doing this has
increased the multithreaded performance from 1.5 to 5% depending on the
workload.