[erlang-questions] Erlang Cost Model

Stu Bailey stu.bailey@REDACTED
Wed Sep 16 21:14:18 CEST 2015

Maybe the Erlang community in collaboration with the larger massive
concurrency community should to come up with (or has and I don't know about
them) some standard concurrency benchmarks? Such an effort may be somewhat
(maybe only slightly) analogous to the various transaction processing
benchmarks that the relational database community developed.

Just as a starting point, here is some work specific to Scala in that


On Wed, Sep 16, 2015 at 12:03 PM, Theepan <vasdeveloper@REDACTED> wrote:

> I have never heard of such a cost model for Erlang’s basic operations, but
> most of the time I profiled the code to find out the cost of a
> code-segment, using tools and functions provided by Erlang/OTP. The Erlang
> documents list do-s and don’t-s, and from the engineering school I know
> good programing practices. And most of the time I use common sense of how
> to write a good piece of code. This is my story, and wrote it to give my
> one cent on the crowd sourcing part.
> At an Erlang process level operations can be timed, as they directly map
> to the operations at the underlying OS. And then you will have to add some
> extra cost for the process management by the OTP. This extra cost is a
> function of many variables like number of cores, configuration of
> schedulers, yielding frequency, length of process queue, GC and so on.
> There is no straightforward way, but through a deeper analysis they can be
> determined.
>  Theepan
> On Wed, Sep 16, 2015 at 8:33 PM, Eric des Courtis <
> eric.des.courtis@REDACTED> wrote:
>> What is the cost model of all operations in Erlang 18?
>> For example Python has this cost model
>> http://scripts.mit.edu/~6.006/fall07/wiki/index.php?title=Python_Cost_Model
>>  .
>> I either want a link to a single source for this information or I would
>> like to crowd source the information here now.
>> Thanks for your cooperation.
>> Eric des Courtis
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