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optimize merge iterator #16

Merged
merged 1 commit into from
Jun 20, 2018
Merged

optimize merge iterator #16

merged 1 commit into from
Jun 20, 2018

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coocood
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@coocood coocood commented Jun 20, 2018

The microbenchmark shows that the new merge iterator improved the performance

from
20694 ns/op
to
8509 ns/op
on merging 2 chilren iterators.

from
176898 ns/op
to
134595 ns/op
on merging 8 children iterators.

@coocood
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coocood commented Jun 20, 2018

@ngaut PTAL

@ngaut ngaut merged commit 977f293 into master Jun 20, 2018
@ngaut ngaut deleted the merge-two-iterator branch June 20, 2018 09:57
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@coocood @ngaut