RFR: JDK-8252802: java launcher should set MALLOCOPTIONS and LDR_CNTRL in order to use 64KB pages on AIX

[David Holmes]

On Mon, 19 Feb 2024 05:52:22 GMT, Varada M <varadam at openjdk.org> wrote:

> DeCapo Benchmark Results (3 runs) :  
> 
> Before : 
> ===== DaCapo 9.12 h2 PASSED in 281402 msec =====
> ===== DaCapo 9.12 h2 PASSED in 269818 msec =====
> ===== DaCapo 9.12 h2 PASSED in 279279 msec =====
>  
> After:
> ===== DaCapo 9.12 h2 PASSED in 279192 msec =====
> ===== DaCapo 9.12 h2 PASSED in 269769 msec =====
> ===== DaCapo 9.12 h2 PASSED in 271577 msec ===== 
> 
> Environmental variables LDR_CNTRL and MALLOCOPTIONS has caused test/jdk/java/lang/ProcessBuilder/Basic.java failure.
> Additional environmental variables has to removed from removeAixExpectedVars().
> 
> JBS Issue : [JDK-8252802](https://bugs.openjdk.org/browse/JDK-8252802)

I concur with Alan: is this the right way to fix this? And is it really the case that every single Java application on AIX wants this setting?

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PR Comment: https://git.openjdk.org/jdk/pull/17906#issuecomment-1953585384