RFR: 8166002: Emulate client build on platforms with reduced virtual address space

[Jamsheed C m]

Hi Vladimir,

Thank you for the review.

On 10/28/2016 12:25 PM, Vladimir Kozlov wrote:
> Hi Jamsheed,
>
> Why you need changes in tests?
>
> Why you can't use set_client_compilation_mode() in both places?
>
There were failures in test/compiler module when i set client 
compilation mode as default for win32, some tests assumes Tiered mode 
run.  So opted to go with TieredStopAtLevel=1.
Performance wise both are on par.
Best Regards,
Jamsheed
> Looks fine otherwise.
>
> Thanks,
> Vladimir
>
> On 10/20/16 8:45 AM, Jamsheed C m wrote:
>> Hi All,
>>
>> bug id:https://bugs.openjdk.java.net/browse/JDK-8166002
>>
>> http://cr.openjdk.java.net/~jcm/8166002/webrev.00/
>>
>> Fix: set NeverActAsServerClassMachine=true, Limit TieredCompilation 
>> to C1 by default, for win32 platform.
>>
>> A new flag CompilationMode=<client/server> is introduced to select 
>> server/ client mode compilation. This option is supported only in 
>> TIERED builds.
>>
>> -XX:CompilationMode=server supports both -XX:+/-TieredCompilation.
>>
>> -XX:CompilationMode:client ignores TieredCompilation flag.
>>
>> Please review,
>>
>> Best Regards,
>>
>> Jamsheed
>>
>>
>>