terark-zip-rocksdb: madvise index as sequential access

krareT / pub-task

Terark public developing

MIT License

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Closed rockeet closed 5 years ago

rockeet commented 5 years ago

Now mmap data is madvised as RANDOM, random is not optimal for index data, such as NLT & zbs offsets.

rockeet commented 5 years ago

It does not advise random index data now, this is exactly what we want, close the issue!