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Rewrite PhysicalRowIdPageManagerFree #33

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jankotek opened this issue Mar 19, 2012 · 0 comments
Closed

Rewrite PhysicalRowIdPageManagerFree #33

jankotek opened this issue Mar 19, 2012 · 0 comments

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@jankotek
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After massive delete lot of free records are generated. This slows down future updates.

When record is updated/inserted, this class makes naive linear scan across table of free records. This is very slow. Currently it is major bottleneck in JDBM3. There is workaround with auto-defragmentation, but this will go away after rewrite.
jankotek pushed a commit that referenced this issue Apr 8, 2012
@dan-g
Reworked PhysicalFreeRowIdManager. Now JDBM insert/update time is con…
88e0eab 
…stant even if store is fragmented. Solves issues #57 and  #33
@jankotek jankotek closed this as completed Apr 8, 2012
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@jankotek