A patch there adds mmapped binary file usage instead of heap for key and value parameters in memory structure. It gains heap consumption reduction+memory fragmentation reduction
Created attachment 8083 [details] [review] this patch implements usage of mmapped bufer Attached patch which implements usage of mmapped bufer instead of memory allocated data, reduses heap consumption and heap fragmentation.
IIRC something like that applied to git. Close now. Reopen if I was wrong.
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