Step 1 – don’t panic ;-)
Step 2 – as I already asked for, please share actual details of the
benchmarks. It is not good to discuss benchmarks without any insight into
what / how exactly you’re measuring.

-- 
Cheers,
Konrad 'ktoso <http://kto.so>' Malawski
Akka <http://akka.io/> @ Lightbend <http://lightbend.com/>

On October 12, 2017 at 15:31:19, Gary Malouf ([email protected]) wrote:

We have a web service that we just finished migrating from spray 1.3 to
Akka-Http 10.0.9.  While in most cases it is performing well, we are seeing
terrible 99th percentile latencies 300-450ms range) starting from a very
low request rate (10/second) on an ec2 m3.large.

Our service does not do anything complicated - it does a few Map lookups
and returns a response to a request.  In spray, even 99th percentile
latencies were on the order of 1-3 ms, so we are definitely concerned.
Connections as with many pixel-type servers are short-lived -> we actually
pass the Connection: Close header intentionally in our responses.

Is there any obvious tuning that should be done on the server configuration
that others have found?
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