RFR(XXS): 8034775: Failing to initialize VM when running with negative value for -XX:CICompilerCount (original) (raw)

Albert albert.noll at oracle.com
Thu Feb 13 03:13:05 PST 2014

Hi Igor,

you are right, thanks for catching this. I've modified the output check such that we don't need to add -XX:-TieredCompilation.

If you think we should add -XX:-TieredCompilation nevertheless, I'll do it. http://cr.openjdk.java.net/~anoll/8034775/webrev.01/

Many thanks, Albert

On 02/13/2014 12:02 PM, Igor Ignatyev wrote:

Albert,

your test fails, if it runs on VM w/o Tiered. I'd recommend to add -XX:-TieredCompilation as an arg: 34 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:-TieredCompilation -XX:CICompilerCount=-1"); and change the check: 37 String expectedOutput = "CICompilerCount of -1 is invalid; must be at least 1"; Igor On 02/13/2014 02:54 PM, Albert wrote: Hi,

could I get reviews for this small patch? bug: https://bugs.openjdk.java.net/browse/JDK-8034775 webrev: http://cr.openjdk.java.net/~anoll/8034775/webrev.00/ With this patch, we check at VM startup for a reasonable minimal number of compiler threads (1 for non-tiered, and 2 for tiered). If this minimum is not reached, the VM exits. Added regression test. Many thanks, Albert

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