java - Netty optimising latency -


i've been developing proxy netty 4.0 (alpha 8). well, need optimize latency, send strings around 4000 bytes ny london. zip payload jzlib encoder on delimited frame decoder.

i in comparison proprietary tool, have benchmark, measure thirdparty interface until put netty channel process in submilliseconds 3-5 milliseconds range both sides, client/server. on server use time message received until send out thirdparty interface.

in betweeen transmission time ranges 200 - 500 ms , outliers in below 100 ms, 1 second , 2 second range.

at moment using oio since there 1 permanent connection client server, use tcp no delay. traffic heavy, sending marketdata information.

at moment want continue remote profile app, gcc logging going , either locally or on servers try sniff packages , compare thirdparty traffic 1 generating on netty.

my questions:

  • what outmost point in netty can use measure time used in component uses netty, client , server, channel.write , messagereceived?
  • given scenario other channel options should try improve performance?
  • using wireshark has advise on package properties (i know general question , compare packages @ first instance).
  • should use other callbacks or diagnostic provided in netty?

thank advise.

i able solve , results great. though low number of connections advise given in articles use oio switched nio resulted in below 100 ms transmission results transmissions.


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