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Where is all the attention that happened for the first two rounds? (I'm really hoping someone will explain why Go's database results are so slow, and what can be done to improve that.)

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The most likely cause is in the mysql driver. Go provides an interface for drivers to implement, similar to how JDBC does in Java. One of the go developers, Brad Fitzpatrick, commented [1] that the actual code used by the benchmark looks OK. The discussion of these test results on golang-nuts [1] triggered a number of performance related pull requests [2] to the mysql driver used.

Also of interest: https://code.google.com/p/go/issues/detail?id=5323

1: https://groups.google.com/forum/?fromgroups=#!topic/golang-n...

2: https://github.com/go-sql-driver/mysql/pull/52 https://github.com/go-sql-driver/mysql/pull/55

Excellent, thanks much!

Just for the reference: It was not the drivers fault but an bug in the database/sql package, which was fixed in https://code.google.com/p/go/source/detail?r=45c12efb46

Thanks for posting the follow up here, Julien. I'm glad this has been fixed. We look forward to the Round 4 numbers with Go fixed up.

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