Re: Array accesses are boring

Florian Weimer <>
Fri, 15 Mar 2024 21:50:13 +0100

          From comp.compilers

Related articles
Array accesses are boring (John R Levine) (2024-03-06)
Re: Array accesses are boring (Florian Weimer) (2024-03-15)
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From: Florian Weimer <>
Newsgroups: comp.compilers
Date: Fri, 15 Mar 2024 21:50:13 +0100
Organization: Compilers Central
References: 24-03-001
Injection-Info:; posting-host=""; logging-data="29784"; mail-complaints-to=""
Keywords: Java, comment
Posted-Date: 16 Mar 2024 21:35:12 EDT

* 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.

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]

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