RFR 8069291: [TESTBUG] Fibonacci test: OutOfMemoryError: unable to create native thread

Dmitry Dmitriev dmitry.dmitriev at oracle.com
Fri Feb 13 20:11:38 UTC 2015


Please review this fix for JDK-8069291. Unfortunately, the bug report isn't visible outside Oracle. 

This test calculates Fibonacci numbers "recursively" via threads and compares the result with the classical calculation. I correct out-of-memory error which sometimes occurred on 32 bit systems. I changed how the recursive threads are created. Now left & right branches creates separately and thread wait one branch to finish before creating thread for another branch. 

As part of the fixing the OOM issue I am moving the test to OpenJDK. 

Open webrev: http://cr.openjdk.java.net/~ctornqvi/webrev/8069291/webrev.00/ 

JBS bug: https://bugs.openjdk.java.net/browse/JDK-8069291 

I run this test on all main platforms; Linux x64, Linux x32, Win x32, Win x64, MacOS x64, Solaris x64, Solaris Sparc64 


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