Fastest key-value pair database? [closed]

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I am looking for fast开发者_高级运维est free key-value pair database available. Database doesn't have to be server-based, it can be linked into the application. I am aware of Tokyo Cabinet. Any other suggestions?

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i vote for BerkeleyDB!

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I don't know about fastest, but you can look at this question: Document databases/Key-value stores for use with .Net projects.

The reality, is that you will probably need to clearly establish a performance baseline and profile different databases for yourself to determine which will have acceptable performance for your specific application.

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An in-memory sql lite database