jdk-24/test/hotspot/jtreg/gtest/CompressedKlassGtest.java
Roman Kennke 44ec501a41 8305895: Implement JEP 450: Compact Object Headers (Experimental)
Co-authored-by: Sandhya Viswanathan <sviswanathan@openjdk.org>
Co-authored-by: Martin Doerr <mdoerr@openjdk.org>
Co-authored-by: Hamlin Li <mli@openjdk.org>
Co-authored-by: Thomas Stuefe <stuefe@openjdk.org>
Co-authored-by: Amit Kumar <amitkumar@openjdk.org>
Co-authored-by: Stefan Karlsson <stefank@openjdk.org>
Co-authored-by: Coleen Phillimore <coleenp@openjdk.org>
Co-authored-by: Axel Boldt-Christmas <aboldtch@openjdk.org>
Reviewed-by: coleenp, stefank, stuefe, phh, ihse, lmesnik, tschatzl, matsaave, rcastanedalo, vpaprotski, yzheng, egahlin
2024-11-08 17:21:39 +00:00

61 lines
2.8 KiB
Java

/*
* Copyright (c) 2024, Red Hat, Inc. All rights reserved.
* Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
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*
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*
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*/
/*
* This runs the "compressedKlass" class of gtests.
* Note: we try to trigger bugs by enforcing the JVM to use zero-based mode. To increase the chance of zero-based
* mode, we start with CDS disabled, a small class space and a large (albeit uncommitted, to save memory) heap. The
* JVM will likely place the class space in low-address territory.
* (If it does not manage to do this, the test will still succeed, but it won't alert us on regressions)
*/
/* @test id=use-zero-based-encoding
* @library /test/lib
* @modules java.base/jdk.internal.misc
* java.xml
* @run main/native GTestWrapper --gtest_filter=CompressedKlass* -XX:+UnlockExperimentalVMOptions -XX:-UseCompactObjectHeaders -Xlog:metaspace* -Xmx6g -Xms128m -Xshare:off -XX:CompressedClassSpaceSize=128m
*/
/* @test id=ccp_off
* @library /test/lib
* @modules java.base/jdk.internal.misc
* java.xml
* @run main/native GTestWrapper --gtest_filter=CompressedKlass* -XX:-UseCompressedClassPointers -Xlog:metaspace* -Xmx6g -Xms128m
*/
/* @test id=use-zero-based-encoding-coh
* @library /test/lib
* @modules java.base/jdk.internal.misc
* java.xml
* @run main/native GTestWrapper --gtest_filter=CompressedKlass* -XX:+UnlockExperimentalVMOptions -XX:+UseCompactObjectHeaders -Xlog:metaspace* -Xmx6g -Xms128m -Xshare:off -XX:CompressedClassSpaceSize=128m
*/
/* @test id=use-zero-based-encoding-coh-large-class-space
* @library /test/lib
* @modules java.base/jdk.internal.misc
* java.xml
* @run main/native GTestWrapper --gtest_filter=CompressedKlass* -XX:+UnlockExperimentalVMOptions -XX:+UseCompactObjectHeaders -Xlog:metaspace* -Xmx6g -Xms128m -Xshare:off -XX:CompressedClassSpaceSize=4g
*/