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7302 :: Nim in 2020: A short recap

• miran (orginal) [2020-12-29T10:15:20+01:00] view original

  https://nim-lang.org/blog/2020/12/28/nim-in-2020-a-short-recap.html

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• xigoi (orginal) [2020-12-29T13:33:27+01:00] view original

  I'm still confused — is ORC currently the default, or do we have to switch to it manually?

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• Yardanico (orginal) [2020-12-29T13:34:02+01:00] view original

  ORC is not the default as of currently, but the plan for it is to become a default in one of the next releases :)

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• cblake (orginal) [2020-12-29T15:31:03+01:00] view original

  The idea was to get the compiler compiling itself with ORC with no leaks before changing the default in a release.

  An example leak I have is hldiff. With the default GC running against git log -p run on a Nim git repo takes 1.2 MiB. With arc/orc (devel or 1.4.x) 1.5 GiB, over 1000x more. { I haven't gotten around to trying to find a minimum reproduction and filing a github issue. And, yeah, yeah lent/etc. annotations might workaround the bug. Or maybe I have one. Anyway, it's still much smaller than the whole compiler. ;-) }

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• Araq (orginal) [2020-12-29T15:45:02+01:00] view original

  Actually, the compiler itself will run faster with M&S for the foreseeable future (throughput is everything for the Nim compiler), at the same time our users would hardly benefit from it, so we changed the plan and focussed on async. But yeah, of course, bugs are bad and must be fixed.

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• cblake (orginal) [2020-12-29T17:18:32+01:00] view original

  I just took that plan as "The Nim compiler is large complex code base. So, if things don't leak there, that is a pretty stringent test. And Nim authors are very familiar with their own code base." Analogous to the usual compiler-can-compile-itself style tests. So, I still think it could be a good plan even if production Nim compilers never default to gc:orc themselves for usage. :) But maybe it's too stringent a test. Hard to say.

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• Araq (orginal) [2020-12-29T18:01:29+01:00] view original

  Sure but the time we spend on koch boot --gc:orc is time we don't spend on IC or not-nil or ... It's tough.

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• digitalcraftsman (orginal) [2020-12-30T16:16:49+01:00] view original

  Following its great success, we can already announce Nim Conf 2021! We don’t have any concrete details yet, but the plan is to have it in the summer of 2021 - mark your calendars and start preparing your talks :)

  I'm looking forward to NimConf 2021.

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