Altogether these optimizations make quite a big difference, removing over 1ms from every request. if you're interested you can clone zotonic's webmachine from

Altogether these optimizations make quite a big difference, removing over 1ms from every request. if you're interested you can clone zotonic's webmachine from deps/webmachine in the zotonic hg repo. we sent these changes to basho (justin sheehy) but up until now they never took a look at it although they promised it. We're still hoping they include the changes however.