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Improve efficiency of fold_objects sqn_order - and hence efficiency of handoffs in Riak
#465
(also includes - #462)
The
riak_SUITE:handoff_close/1
test would previously fail, as there would be around 5s of time processing changes after the fold to the JournalSQN has finished. It now tests that this is less than 1s (on a fats machine should be < 10ms).The batch size has also bene reduced to alternate more frequently between pushing disk and pushing CPU.