[Play-Java 2.4.x] Why play framework is so slow when using twirl?

[Saeed Zarinfam]

I have a controller, when i render a twirl template and return it in my action. the play performance decrease about 5 time (15000 Requests per second in apache benchmark). but when i return json in this action play performance increase about 5 time  (79000 Requests per second in apache benchmark). I have a very simple twirl template:

@(message: String)

@main("Welcome to Play") {

    @message

}

[Rich Dougherty]

I can imagine there are times when JSON is slower than Twirl, it depends on the JSON and on the Twirl template code, on the size of the JSON vs the size of the HTML, etc. You probably need to do some experiments to understand what's causing performance issues, e.g. write a minimal, no data JSON result and a minimal, no data Twirl template and compare performance, run in a profiler, etc.

– Rich

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Rich Dougherty

Engineer, Typesafe, Inc

@richdougherty