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devel / comp.compilers / Re: Array accesses are boring

Array accesses are boring

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https://news.novabbs.org/devel/article-flat.php?id=1572&group=comp.compilers#1572

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From: johnl@taugh.com (John R Levine)
Newsgroups: comp.compilers
Subject: Array accesses are boring
Date: Wed, 06 Mar 2024 11:42:01 -0400
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by: John R Levine - Wed, 6 Mar 2024 15:42 UTC

They instrumented a large set of Java benchmarks to look at the array
accesses, over 3 billion of them in total. The majority fell into five
simple access patterns. See the pictures on page 8 of the PDF.

https://arxiv.org/abs/2403.02416

Regards,
John Levine, johnl@taugh.com, Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly

Re: Array accesses are boring

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From: fw@deneb.enyo.de (Florian Weimer)
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Subject: Re: Array accesses are boring
Date: Fri, 15 Mar 2024 21:50:13 +0100
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by: Florian Weimer - Fri, 15 Mar 2024 20:50 UTC

* John R. Levine:

> They instrumented a large set of Java benchmarks to look at the array
> accesses, over 3 billion of them in total. The majority fell into five
> simple access patterns. See the pictures on page 8 of the PDF.
>
> https://arxiv.org/abs/2403.02416

It's strange that they observed array lengths changing at the JVM
bytecode level. That shouldn't happen.
[Different sizes on different calls to the routine? -John]

Subject	Author
Array accesses are boring	John R Levine
Re: Array accesses are boring	Florian Weimer