On Mar 18, 2012 6:39 PM, "Florian Hartwig"
GSoC stretches over 13 weeks. I would estimate that implementing a data structure, writing tests, benchmarks, documentation etc. should not take more than 3 weeks (it is supposed to be full-time work, after all), which means that I could implement 4 of them in the time available and still have some slack.
Don't underestimate the time required for performance tuning, and be careful to leave yourself learning time, unless you have already extensively used ThreadScope, read GHC Core, and worked with low-level strictness, unpacking, possibly even rewrite rules. I suspect that the measurable performance benefit from lockless data structures might be tricky to tease out of the noise created by unintentional strictness or unboxing issues. And we'd be much happier with one or two really production quality implementations than even six or seven at a student project level. -- Chris Smith