JSON print performance with indent

gistfile1.txt

Previous performance:

    elapsed time: 7.237158689 seconds (2688899208 bytes allocated)

Performance with indent implemented:

    elapsed time: 10.58000847 seconds (2789486440 bytes allocated) - indent set to 0
    elapsed time: 11.382926355 seconds (3966498496 bytes allocated) - indent set to 2

json_indent_performance.jl

using JSON
function generate_jagged(l1, l2)
	data = Any[]
	arrays_only = true
	randrand(maxlen) = rand(int(rand()*maxlen))
	for r in rand(int(l1))
	    if r < 0.25
	    	if arrays_only
	        	push!(data, string(randrand(l2)))
	        else
	        	push!(data, {string(i)=>int(i*10) for i = randrand(l2)})
	    	end
	    elseif r < 0.5
	        push!(data, randrand(l2))
	    elseif r < 0.75
	        push!(data, int(10*randrand(l2)))
	    else
	    	if arrays_only
	        	push!(data, [nothing for i = randrand(l2)])
	    	else
	        	push!(data, {string(int(i))=>nothing for i = 10*randrand(l2)})
	        end
	    end
	end
	data
end
data = generate_jagged(1e5, 500)
sio = IOBuffer()
JSON.print(sio, data)
@time JSON.print(sio, data)
close(sio)
sio = IOBuffer()
JSON.print(sio, data, 2)
@time JSON.print(sio, data, 2)
close(sio)