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maz1b • today at 6:54 AM • 2 replies • view on HN

It's never Christmas without a new ruby version.

The ruby::box thing looks pretty interesting, from a cursory glance you can run two simultaneous versions of something like a feature or rollout much more conveniently.

Also being able to do

  if condition1
     && condition2
    ...
  end
on multiple lines rather than one - this is pretty nifty too!

Replies

WJW • today at 9:39 AM

I'm kinda hoping that eventually each ractor will run in it's own ruby::box and that each box will get garbage collected individually, so that you could have separate GCs per ractor, BEAM-style. That would allow them to truly run in parallel. One benefit should be to cut down p99 latency, since much fewer requests would be interrupted by garbage collection.

I'm not actually in need of this feature at the moment, but it would be cool and I think it fits very well with the idea of ractors as being completely separated from each other. The downside is of course that sharing objects between ractors would get slower as you'd need to copy the objects instead of just sharing the pointer, but I bet that for most applications that would be negligible. We could even make it so that on ractor creation you have to pass in a box for it to live in, with the default being either a new box or the box of the parent ractor.

➕ show 1 reply
tebbers • today at 7:23 AM

I've been doing

  if condition1 && 
       condition2
       ...
  end
for ages and it seems to work find, what am I missing with this new syntax?!
➕ show 6 replies