Rpi – a Rust rewrite of the Pi agent, 10× faster startup

7 comments

• MarleTangible 12 hours ago

  The table corrected:

    Metric          rpi (Rust)   Pi (TypeScript)   Difference
    --version       17.5 ms      169.5 ms          9.7x faster
    Cold start      17.7 ms      189.5 ms          10.7x faster
    RSS when ready  12.0 MiB     91.5 MiB          7.6x smaller
    Install size    21.8 MiB     ~385 MiB          ~18x smaller

• vincent-uden 20 hours ago

  This kind of invalidate the pitch of Pi, the self-modifying harness. You can't use the Pi extensions I'm assuming...

  Without a plan of your own for extensions this is comparing apples to oranges. My Pi startup time is dominated by loading extensions and skills, and I don't even have many to begin with!

  (It seems like there is a pluging API judging by the Github repo. That wasn't linked in the comments by the time of my writing)

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  • dv_dt 16 hours ago

    I wonder about adding a plugin shim for webassembly, or a Rust crate with integrated V8 engine (Bun?). But honestly, I use pi and I have yet to ask it to self-modify.

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    • vincent-uden 16 hours ago

      I mean, kinda same. I've asked it to write skills but that is about it. And skills dont require this. But I do use other peoples extensions.

• syrusakbary 16 hours ago

  Nice!

  This is great. A few days ago we were able to enable running Pi fully in the browser (and in the iPhone). Demo here: https://wasmer.sh/?example=pi

  I'd be curious if we could compile Rpi to WASIX (https://wasix.org) and get it there as well!

• voidUpdate 20 hours ago

  That name won't be confusing at all

• bigfishhk 20 hours ago

  github repo: https://github.com/bigfish1913/pi-rust