featurebase

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Author	SHA1	Message	Date
Ben Johnson	cf4297a771	Optimize TopN() w/ source query. This commit makes several changes to optimize the TopN() query: - Reduce highbits() back from 24-bits to 16-bits. - Reduce MaxArraySize back from 2^20 to 4096. - Optimize bitmap count invalidation. - Parallelize TopN() across nodes. - Parallelize TopN() across slices.	2016-09-13 14:55:56 -06:00
Ben Johnson	08659c350b	optimize intersection count This commit moves the computation of the intersection count to the `roaring` package so that no allocations are required. The implementation operates at the roaring container level and has specialized functions for array-array, array-bitmap, and bitmap-bitmap container pairs.	2016-06-02 16:03:21 -06:00

Author

SHA1

Message

Date

Ben Johnson

cf4297a771

Optimize TopN() w/ source query.

This commit makes several changes to optimize the TopN() query:

- Reduce highbits() back from 24-bits to 16-bits.
- Reduce MaxArraySize back from 2^20 to 4096.
- Optimize bitmap count invalidation.
- Parallelize TopN() across nodes.
- Parallelize TopN() across slices.

2016-09-13 14:55:56 -06:00

Ben Johnson

08659c350b

optimize intersection count

This commit moves the computation of the intersection count to
the `roaring` package so that no allocations are required. The
implementation operates at the roaring container level and has
specialized functions for array-array, array-bitmap, and
bitmap-bitmap container pairs.

2016-06-02 16:03:21 -06:00

2 commits