[JulienSchmidt]

INB4 questions to the Go results: Nope, issues of round 4 not addressed yet.

Like in round 4 (since the related code hasn't changed) the many concurrent spawned goroutines probably get in each others way, causing a high latency and low throughput.

There was a reversion of the test without goroutines, which I think performed better. But I was told the goroutines version is more realistic... (I don't share this opinion).

To be fair, this version had also a manual connection pool to address a previous bug.

Also Go's database connectivity is not very mature yet. There is still a lot of work to do. I'm pretty sure it can and will be done.

[bhauer]

Hi Julien,

Thanks for the note. I'd like to get to the bottom of this and make the Go test representative of best practices. A previous decision may have been made to favor an implementation that was measured to be faster at the expense of best practices [1], but that is not irreversible.

I am not a Go expert and I believe you are, and certainly @bradfitz is as well. If you two tell us definitively to change the Go implementation to better comply with best practices, I'll see that it's done for Round 6. I apologize if you feel we stepped on your opinions in any fashion. I really value your input in the project to date and hope it will continue.

[1] https://github.com/TechEmpower/FrameworkBenchmarks/pull/209

[JulienSchmidt]

  I apologize if you feel we stepped on your opinions in any fashion.

I don't ;)

I'm just not so happy about making the queries this way: http://i.imgur.com/u9Nx5.png

Of course I will try to help solving this issue, but it is hard to contribute without testing, since I have no idle server or suitable spare computer around where I could run this tests properly. But my PC seems to have a somewhat similar configuration to your "dedicated i7 hardware". I hope I manage to set up the test environment in a dual-boot soon.

[bhauer]

Thanks for clarifying! It's reassuring.

Please let us know if there is anything we can do to help ease the process. It is not strictly necessary to set up the whole benchmark platform. You can create the very simple database with the scripts. Then just run Go alongside a load generator such as Wrk in order to experiment with various approaches and do spot checks along the way.