Performance of signals

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On Saturday, 6 July 2013 at 09:10:44 UTC, JS wrote:
> I am trying to implement a near real time processing system 
> that requires some type of observation pattern. Performance is 
> key here. I have not had any time to benchmark std.signals so I 
> am curious to its performance and the difficulty of refactoring 
> it if currently used. (or wrapping it)

Read this: 
http://forum.dlang.org/thread/kd9u7a$2093$1@digitalmars.com