When plotting the response time over time, this educated guess becomes even more solid: http://earl.strain.at/2010/ringo-node-benchmark/buffer-alloc-scatter.pn

When plotting the response time over time, this educated guess becomes even more solid: http://earl.strain.at/2010/ringo-node-benchmark/buffer-alloc-scatter.png http://earl.strain.at/2010/ringo-node-benchmark/buffer-alloc... (This uses the very same dataset underlying the "buffer alloc" graph in the original post.)