Jeremy Hanna created CASSANDRA-6794:
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Summary: Optimise slab allocator to enable higher number of column
families
Key: CASSANDRA-6794
URL: https://issues.apache.org/jira/browse/CASSANDRA-6794
Project: Cassandra
Issue Type: Improvement
Components: Core
Reporter: Jeremy Hanna
Assignee: Benedict
Currently the slab allocator allocates 1MB per column family. This has been
very beneficial for gc efficiency. However, it makes it more difficult to have
large numbers of column families.
It would be preferable to have a more intelligent way to allocate slabs so that
there is more flexibility between slab allocator and non-slab allocator
behaviour.
A simple first step is to ramp up size of slabs from small (say 8KB) when
empty, to 1MB after a few slabs.
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