[erlang-questions] squeezing performance out of cowboy - how?

Alex Babkin <>
Tue Sep 10 04:01:00 CEST 2013


Sorry for the spam,
(what a crappy email client!)


On Mon, Sep 9, 2013 at 9:58 PM, Alex Babkin <> wrote:

> Thanks all for replies!
>
> After trying various suggestions i've realized that it was tsung that was
> bottlenecking on me, looks like it cannot support more than 800 req/s or so
> on a single node (or at least this is what i see)
>
> Looks like my server can support comfortably (cpu load of around 30% over
> all cores) around 1,300 req/s with 3 instances of tsung generating traffic
> - 2 dedicated nodes and 3rd tsung running on the same node as the server
>
> So it looks like i either need to run more nodes to generate more traffic
> or tune tsung somehow
>
>
> Alex
>
> On Sep 9, 2013, at 1:32 PM, Max Lapshin <> wrote:
>
> Alex, maybe you have just met a common problem when testing tool cannot
> produce required load to benchmark server?
>
> Look at CPU and network load for server and testing tool when you run
> benchmarks.
>
>
>
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