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Replying here as I can't add on another reply below

The way we do our monitoring/UI is with zeromq/protocol buffers as an external surface to the trading system (basically a PUB socket) and a very thin bridging and translation layer to WebSockets and JSON in python. That way you get to use d3 or anything else on the front end. We use backbone, knockback and d3 with coffeescript.

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Thatsvery similar to what I/we use to build our realtime network monitoring tools, swapping out python for PHP (regrettably). It's validating to see other shops in different industries zeroing in on the similar stacks.

Yes realtime over websocket to a data-binding style library like knockout (I'd probably choose angular if was starting now) saves you a ton of work.

Are you using ReactPHP for the ZMQ/webSocket parts or something else?

Sounds great, but way beyond either my paygrade or budget.

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