zousar shaker 204349bdd1 Fix excessive thread spawning caused by name resolving of "localhost" at high frequency by the Zen stats code. ...

Re-use Curl request when gathering stats.  Rate limit it to no more than 2/second.  Still keeping it synchronous and blocking for now.
Avoid using "localhost" and prefer the IPV6 loopback address of [::1] to avoid name resolution penalty for localhost.
Keep DNS cache in Curl permanently for a given request.

#rb devin.doucette
#jira UE-142437
#preflight 620a7d7b6e5d06a542963178

#ROBOMERGE-AUTHOR: zousar.shaker
#ROBOMERGE-SOURCE: CL 18980515 in //UE5/Release-5.0/... via CL 18980843 via CL 18981187
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v917-18934589)

[CL 18981362 by zousar shaker in ue5-main branch]

2022-02-14 12:19:59 -05:00

..

ZenGlobals.h

Fix excessive thread spawning caused by name resolving of "localhost" at high frequency by the Zen stats code.

2022-02-14 12:19:59 -05:00

ZenServerInterface.h

Fix excessive thread spawning caused by name resolving of "localhost" at high frequency by the Zen stats code.

2022-02-14 12:19:59 -05:00

ZenStatistics.h

Branch snapshot for CL 18531810

2022-01-06 16:44:09 +00:00