Why and How the External STG interpreter is Useful (Online presentation, Dec 2, Friday, 17:00 UTC)

chessai chessai1996 at gmail.com
Thu Dec 2 15:04:40 UTC 2021


Will there be a recording?


On Thu, Dec 2, 2021, 06:55 Csaba Hruska <csaba.hruska at gmail.com> wrote:

> It's on Thursday Dec 2 17:00 UTC.  (Today)
> Sorry for the confusion.
> On Thu, Dec 2, 2021 at 3:52 PM Csaba Hruska <csaba.hruska at gmail.com>
> wrote:
>> Hello,
>> Today I'll do a presentation about the external stg interpreter.
>> If you are interested please join and ask questions.
>> https://skillsmatter.com/meetups/13654-haskell-stg-interp
>> Regards,
>> Csaba Hruska
>> Abstract:
>> Haskell: Why and How the External STG Interpreter is Useful
>> The external STG interpreter is a from scratch implementation of the STG
>> machine in Haskell. Currently it supports almost all GHC primops and RTS
>> features. It can run real world Haskell programs that were compiled with
>> GHC Whole Program Compiler (GHC-WPC). GHC-WPC is a GHC fork that exports
>> the whole program STG IR.
>> The external STG interpreter is an excellent tool to study the runtime
>> behaviour of Haskell programs, i.e. it can run/interpret GHC or Pandoc. The
>> implementation of the interpreter is in plain simple Haskell, so it makes
>> compiler backend and tooling development approachable for everyone. It
>> already has a programmable debugger which supports step-by-step evaluation,
>> breakpoints and execution region based inspection. It also can export the
>> whole program memory state and call-graphs to files for further
>> investigation. These features make it easy to find a memory leak or to
>> identify a performance bottleneck in a large real world Haskell application.
>> https://github.com/grin-compiler/ghc-whole-program-compiler-project
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