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

[Albert]

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