884d031e72
It turns out that pre-allocating the entire tree was too expensive in terms of memory when using large values for the -mcs and -ics parameters. Pre-allocating the first two dimensions prevents us from ever locking the root node during a put(). Contention between threads over lower levels of the tree should be minimal given that puts are rare compared to gets. Also output dimensions and pre-allocation info at startup. If pre-allocation takes longer than usual this gives the user a sense of what is causing the delay. |
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