8010722: assert: failed: heap size is too big for compressed oops
Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation.
Reviewed-by: stefank, dholmes
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/*
* @test TestUseCompressedOopsErgo
* @key gc
* @bug 8010722
* @summary Tests ergonomics for UseCompressedOops.
* @library /testlibrary /testlibrary/whitebox
* @build TestUseCompressedOopsErgo TestUseCompressedOopsErgoTools
* @run main ClassFileInstaller sun.hotspot.WhiteBox
* @run main/othervm TestUseCompressedOopsErgo -XX:+UseG1GC
* @run main/othervm TestUseCompressedOopsErgo -XX:+UseParallelGC
* @run main/othervm TestUseCompressedOopsErgo -XX:+UseParallelGC -XX:-UseParallelOldGC
* @run main/othervm TestUseCompressedOopsErgo -XX:+UseConcMarkSweepGC
* @run main/othervm TestUseCompressedOopsErgo -XX:+UseSerialGC
*/
public class TestUseCompressedOopsErgo {
public static void main(String args[]) throws Exception {
if (!TestUseCompressedOopsErgoTools.is64bitVM()) {
// this test is relevant for 64 bit VMs only
return;
}
final String[] gcFlags = args;
TestUseCompressedOopsErgoTools.checkCompressedOopsErgo(gcFlags);
}
}