040000 tree 3d0b0c464383e9e498eb7ac058e2ffbae516d0e4	o3-timing
040000 tree 12ed41351301c33a79540a233f25663e3d3b0a0f	simple-atomic
040000 tree 918c588e09be2a45271a3185f49abd144f1daa11	simple-timing-ruby
040000 tree 123c046d6b0a1b111c641a974bfaded2c2189f97	simple-timing