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EVGENIAST / cumulusrdf

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Benchmark + Improve Performance of Cassandra2xBidirectionalMapDAO #77

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
Based on the discussion [1] in the dev-list: Benchmark + Improve Performance of 
Cassandra2xBidirectionalMapDAO. In particular:
* compare/investigate different hash collision resolution approaches
* employ/benchmark how useful bloom filters are for avoiding unnecessary 
probings
* look at other data structures - not hash maps. For instances, tries.

Kind regards
Andreas

[1] 
https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/cumulus
rdf-dev-list/aVRRq1MchOc/XE5dPBYSUiwJ

Original issue reported on code.google.com by andreas.josef.wagner on 21 May 2014 at 10:03

GoogleCodeExporter commented 8 years ago 
+ Reduce amout of queries for getKey(V) operations. If the row with the correct 
value was returned during hash check, just read the key from that and don't 
query again.

Original comment by Isib...@gmail.com on 21 May 2014 at 10:51