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Re: OpenJDK Zero interpreter: fast bytecodes

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From	Aleksey Shipilev <shade@redhat.com>
Newsgroups	linux.debian.maint.java
Subject	Re: OpenJDK Zero interpreter: fast bytecodes
Date	Fri, 06 Jan 2023 12:50:02 +0100
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Hi Emmanuel,

On 1/5/23 23:20, Emmanuel Bourg wrote:
> Is it enabled in all JDKs after JDK 18 too?

Yes, it is implemented and enabled by default in JDK 18+ onward. I now see openjdk-{18,19,20,21}-* 
ship in sid for many architectures already, so this Zero improvement might already be implicitly tested.

>> Is there an easy way to check if e.g. bookworm can be fully re-built
>> with latest and greatest 17.0.7 EA?
> 
> Its tricky, the arch all packages are usually built and tested on amd64
> only (reproducible-builds.org also rebuilds on i386, arm64 and armhf).
> Rebuilding the 1500+ Java packages takes at least two days on a 4c/8t
> 4GHz Xeon, but on m68k it's going to take ages and that would abuse a
> bit the shared porter boxes.

Yes, m68k (linker?) is problematic even for vanilla OpenJDK cross-builds.

Since openjdk 18+ packages are already built, which I assume implies that someone would eventually 
rebuild/run the Java packages with them, I would just wait for bug reports then. If that happens, 
tell me if you need a debian-specific patch to disable/yank the change from any openjdk tree.

-- 
Thanks,
-Aleksey

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Thread

OpenJDK Zero interpreter: fast bytecodes Aleksey Shipilev <shade@redhat.com> - 2023-01-05 10:50 +0100
  Re: OpenJDK Zero interpreter: fast bytecodes Emmanuel Bourg <ebourg@apache.org> - 2023-01-05 23:30 +0100
    Re: OpenJDK Zero interpreter: fast bytecodes Aleksey Shipilev <shade@redhat.com> - 2023-01-06 12:50 +0100

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