Home/ Questions/Q 8257409
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-08T02:11:16+00:00

There are a bunch of Socket.io client implementations out there in e.g. Java (see

  • 0

There are a bunch of Socket.io client implementations out there in e.g. Java (see Java socket.io client), that seem to exclusively support the Websocket protocol.

For benchmarking the server performance of other protocols – and I’m particularly interested in htmlfile as it will be used by IE browsers < 10, unless I enable Flash, which I’m not sure I’ll do, as socket.io transport 'flashsocket' takes 5 seconds to start on IE 8 – is there any Socket.io client available that would allow benchmarking of the server?

I don’t care too much what OS or programming language it is.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    There’s
    https://github.com/Gottox/socket.io-java-client

    In addition to WebSocket, it only does XHR, and that feature is currently considered to be in beta:

    Status: Connecting with Websocket is production ready. XHR is in beta.

    Light testing xhr polling seems to support the claim that it is not production ready yet. I had a bunch of disconnects without subsequent reconnects. This was when testing a few hundred client instances simultaneously in one JVM. As there were errors in the server log, I guess it’s the client.

    One more guess: As the connection drops are so frequent, and the load on the server is so much higher compared to WebSockets, I wonder whether this client’s ‘xhr polling’ does not do HTTP Keepalive, that would explain a lot… Will check as soon as time permits.

    Using WebSocket, I could do 1000 instances per JVM (probably more) and 5000 instances (5 JVMs x 1000 instances each) per machine (probably more, too) without issues.

    And apparently

    it’s easy to write your own transport

    Will check this out.

    • 0