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Re: [rare-dev] any chance to bump jdk version to 21?


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  • From: Alexander Gall <>
  • To: <>
  • Subject: Re: [rare-dev] any chance to bump jdk version to 21?
  • Date: Tue, 14 Feb 2023 09:33:21 +0100


I'm not familiar with the JDK Nix package (looks kind of non-trivial)
and 21 is not even in unstable yet AFAICT. Maybe once that happens I
can try to backport it.

On Mon, 13 Feb 2023 13:33:37 +0100, mc36 <> said:

> https://minborgsjavapot.blogspot.com/2023/02/jdk-21-image-performance-improvements.html
> seemingly the under the hood technology could be very useful as this is the
> most used functions in freerouter:

> https://github.com/rare-freertr/freeRtr/blob/master/src/net/freertr/util/bits.java#L126

> the idea would be to have this:

> https://github.com/minborg/articles/tree/image-perf/2023/January/26-PerformanceImprovementsRevealed

> look at those 2x performance boost on a generic x86-64...
> wondering if we reduce the current 6 seconds full-bgp to 3 seconds? :)

That would be cool but it would be a bit of a marketing figure, given
that we're nowhere near a full table on Tofino ;) Not sure how
relevant it would be on the other data planes.

--
Alex



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