bench.rb

require "boot"
require "rubygems"
require "liquid"
require "benchmark"

template = "{% for item in item_pool %}{{ item.name }}{% endfor %}"
item_pool = (1..10).map { |i| { 'name' => "Hello #{i}" } }

liquid = Liquid::Template.parse(template)
solid = Solid::Template.parse(template)

l = liquid.render('item_pool' => item_pool)
s = solid.render('item_pool' => item_pool)
c = solid.cached_render('item_pool' => item_pool)
raise unless l == s && l == c

N = 1000
Benchmark.bmbm do |x|
  x.report("Liquid") do
    N.times do
      liquid.render('item_pool' => item_pool)
    end
  end
  
  x.report("Solid") do
    N.times do
      solid.render('item_pool' => item_pool)
    end
  end

  x.report("Solid (cached)") do
    N.times do
      solid.cached_render('item_pool' => item_pool)
    end
  end
end

Results

Rehearsal --------------------------------------------------
Liquid           0.480000   0.000000   0.480000 (  0.485351)
Solid            0.100000   0.000000   0.100000 (  0.106081)
Solid (cached)   0.090000   0.000000   0.090000 (  0.086169)
----------------------------------------- total: 0.670000sec

                     user     system      total        real
Liquid           0.440000   0.010000   0.450000 (  0.440790)
Solid            0.110000   0.000000   0.110000 (  0.106895)
Solid (cached)   0.060000   0.000000   0.060000 (  0.063174)