<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>continuations</author><text>I remember reading about this a few years ago here. If I remember correctly back then the main selling point was that it used succinct data structure and it was only the compression algo that was not open source - everything else was.&lt;p&gt;But now when I look at the new repo and the online doc there is no mention of succinct data struct anywhere.&lt;p&gt;Also, the benchmarks back then claimed 10x or more faster than RocksDB. Now the performance claim is much more modest.&lt;p&gt;Does that mean TerarkDB no longer uses succinct data struct? Or are you just open sourcing a lower-end version of the software without the secret sauce?&lt;p&gt;Can you talk about what makes TerarkDB faster than RocksDB?</text><parent_chain><item><author>royguo1988</author><text>TerarkDB was acquired by Bytedance two years ago and is now using widely in Bytedance&amp;#x27;s database services.&lt;p&gt;I am one of the maintainers of this project you can ask any question here.</text></item></parent_chain></comment><story><title>TerarkDB, ByteDance&apos;s RocksDB replacement</title><url>https://github.com/bytedance/terarkdb</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>nikhilsimha</author><text>Always love it when I see a maintainer offer clarifications in a HN comment section! &amp;lt;3&lt;p&gt;What are the reasons for the perf improvements we see here?</text><parent_chain><item><author>royguo1988</author><text>TerarkDB was acquired by Bytedance two years ago and is now using widely in Bytedance&amp;#x27;s database services.&lt;p&gt;I am one of the maintainers of this project you can ask any question here.</text></item></parent_chain></comment><story><title>TerarkDB, ByteDance&apos;s RocksDB replacement</title><url>https://github.com/bytedance/terarkdb</url></story>