Drastically improve large node (re)writes #245
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Was 10%, but this causes growing trees to quickly increase the number of leafs and node levels instead of adding more entries to the leafs. Example: A small tree with 5 entries per node/leaf is rebuilt when growing. Growing node entries with 10% means it now gets 5 + 0.5 = 5.5 = (rounded up) 6 entries. The next time, it gets 7 (6.6), then 8, 9, 10 etc. Growing the number of entries in the leafs and nodes faster improves the performance of the tree, using 50% the tree will grow as follows: 5 + 2.5 = 7.5 = 8 entries, then 8 + 4 = 12, then 12 + 6 = 18 etc.
This moves away from adding all allocated storage addresses for each range which is VERY slow on large nodes spanning multiple pages. It now only requests target records for specific record numbers, and calculated counts only
Caching worked, but might cause unpredictable issues somewhere else
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Dramatically increase the performance of (re)wiring large nodes spanning multiple allocation ranges (logical pages) by: