Execution time, serialization, large data and topicCache

[vamp]

Large amount of data (100+kb) increases execution time up to 185x + Perhaps there is a need for serialized variable configuration, like:

exports.serializer = ko.toJSON // by default

but if i work only with js-like data, i can do:

postbox.serializer = JSON.stringify
// ko.subscribable.fn.toJSON = function(){ return this.peek(); }

my benchmark:

  ko: 22.469ms
json: 1.511ms
noop: 0.115ms 

[rniemeyer]

Seems reasonable to be able to configure it. I will look at adding this in.

[rniemeyer]

The serializer is now exposed as ko.postbox.serializer. This could be used to use JSON.stringify or even simply returning an empty object {} would force it to publish every time without needing to process the data at all.