[erlang-questions] Percept profiler

Kenneth Lundin <>
Fri Dec 14 15:37:47 CET 2007


On 12/14/07, Joel Reymont <> wrote:
>
> On Dec 14, 2007, at 2:14 PM, Kenneth Lundin wrote:
>
> > Have you read the documentation for percept (i.e the user guide?)
>
> Mea Culpa. I undestood the User's Guide link to be something else and
> was looking at the API and man page.
>
> > Profiling of how well the Erlang VM supports parallelism is a
> > completely different thing which requires other tools.
>
>
> Would you elaborate on how this should be done?

Profiling the Erlang VM (which is a C-program using threads) is not supported
by tools that are or will be delivered in the Erlang/OTP distribution.
The profiling here is done with "ordinary" tools for C and C++ programmers.
Example of such a tool "commercial" are:
VTUNE including threadchecker etc.from Intel

Note that profiling of the VM is for the implementors of the VM and maybe
some few highly skilled users which don't understand why they don't get the
performance they expected. It is certainly nothing for most of the
users developing Erlang programs.

/Kenneth Erlang/OTP team at Ericsson
>
>        Thanks, Joel
>
> --
> http://wagerlabs.com
>
>
>
>
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