Spray.io configuration

sprayio.conf

  akka.actor{
    creation-timeout = 20s
    default-dispatcher {
      throughput = 20
      executor = "fork-join-executor"
      fork-join-executor {
        parallelism-min = 16
        parallelism-factor = 2.0
        parallelism-max = 16
      }
    }
  }

 server {
    server-header = spray-can/${spray.version}
    ssl-encryption = off
    pipelining-limit = disabled
    idle-timeout = 60 s
    request-timeout = 20 s
    timeout-timeout = 25 s
    chunkhandler-registration-timeout = 1 s
    timeout-handler = ""
    reaping-cycle = infinite
    stats-support = off
    remote-address-header = off
    raw-request-uri-header = off
    transparent-head-requests = on
    chunkless-streaming = off
    verbose-error-messages = off
    request-chunk-aggregation-limit = 0
    response-header-size-hint = 512
    max-encryption-chunk-size = 1m
    bind-timeout = 10s
    unbind-timeout = 10s
    registration-timeout = 10s
    parsing-error-abort-timeout = 2s
    default-host-header = ""
    automatic-back-pressure-handling = on
    ssl-tracing = off
    parsing = ${spray.can.parsing}
  }

 	host-connector {
    max-connections = 32
    max-retries = 20
    max-redirects = 0
    pipelining = off
    idle-timeout = 30 s
    client = ${spray.can.client}
  }

  parsing {
    max-uri-length             = 2k
    max-response-reason-length = 64
    max-header-name-length     = 64
    max-header-value-length    = 8k
    max-header-count           = 64
    max-content-length         = 8m
    max-chunk-ext-length       = 256
    max-chunk-size             = 1m
    uri-parsing-mode = strict
    illegal-header-warnings = on
    header-cache {
      default = 12
      Content-MD5 = 0
      Date = 0
      If-Match = 0
      If-Modified-Since = 0
      If-None-Match = 0
      If-Range = 0
      If-Unmodified-Since = 0
      User-Agent = 32
    }
    incoming-auto-chunking-threshold-size = infinite
    ssl-session-info-header = off
  }

  manager-dispatcher = "akka.actor.default-dispatcher"
  settings-group-dispatcher = "akka.actor.default-dispatcher"
  host-connector-dispatcher = "akka.actor.default-dispatcher"
  listener-dispatcher = "akka.actor.default-dispatcher"
  connection-dispatcher = "akka.actor.default-dispatcher" 

  spray.io {
  tcp {
    keep-alive = 1
    no-delay = 1
  }
}

I've been looking everywhere for some of the settings that are most important when configuring spray for performance, but also what in Akka can be tweeked. This is awesome thanks!