[pypy-dev] how to extend VTUNE support from pypy for application hot spot analysis

[Armin Rigo]

Hi Peter,

On 29 July 2016 at 01:24, Wang, Peter Xihong
<peter.xihong.wang at intel.com> wrote:
> Armin created a minimum working version incorporating VTUNE to a branch at:
> https://bitbucket.org/pypy/pypy/branch/vtune
>
> This works in a sense such that statistically meaningful micro-architecture
> data could be collected.  However, for hot spot analysis, we’d like to trace
> back to the Python application source code.

Mapping raw addresses in JIT-generated assembly all the way back to
Python is a bit difficult, but that's what vmprof tries to do.  I can
imagine a solution based on vmprof.  For now, try to run pypy in the
vtune branch together with vmprof:
https://github.com/vmprof/vmprof-python .  I think the vmprof log file
contains some information that does the mapping we're looking for.

For now we're not actively developing the vtune branch any more, but
maybe we should.  I should add that my copy of vtune-amplifier-xe
started refusing to work, with "Error - no valid license - license
expired" and no hint about if and how to renew that license, so that
put me off.


A bientôt,

Armin.