How we made our MMDB files a 33% smaller

ipinfo.io

26 points by mmaia 4 days ago


- 3 hours ago
[deleted]
gopalv - 4 hours ago

> The search tree is a binary trie over the bits of an IP address.

The interesting thing here is that the format is still the same.

I read the original spec and it did call out that

> In practice, data deduplication is handled by pointers, making this type unnecessary.

If any entry can be a pointer, you can shrink this recursively for each field type like a .strings table design.

nattaylor - 6 hours ago

These are widely deployed [citation needed] so nice chance to save some ram!

I wonder - if the number of nodes goes down enough then they could reduce the number of bits for the record_size and save another 12-25%

efilife - 5 hours ago

this article would probably be awesome if it wasn't AI written. It's terrible to read