[erlang-questions] Erlang distribution links don't fully utilise available resources - OTP 22.0.2 - Why?

[Michael Truog]

On 6/18/19 2:14 PM, Gerhard Lazu wrote:
> https://github.com/erlang/otp/pull/2291 is an improvement for larger 
> payloads, not so much for smaller ones.
>
> 60 KB - 13.6 Gbit/s (down from 14.4 Gbit/s)
> 120 KB - 12.8 Gbit/s (down from 14.4 Gbit/s)
> 10MB - 8.8 Gbit/s (up from 7.6 Gbit/s)
> 100MB - 5.8 Gbit/s (up from 4.3 Gbit/s)
>
> This is OTP 22.0.2 
> https://grafana.gcp.rabbitmq.com/dashboard/snapshot/SDr2EWgaD2KOX5i0H154UvzoHRS68FV0
>
> This is OTP 22.0.3 + PR 2291 
> https://grafana.gcp.rabbitmq.com/dashboard/snapshot/8yxY61o140gvAKXFthgIVCes2oW2Owa7 
>
>
> Will try https://github.com/erlang/otp/pull/2293 tomorrow
>
You should also try using the erl command line option +zdbbl when 
testing larger payloads (it defaults to 1024 KB with valid values from 1 
- 2097151 KB).

Best Regards,
Michael