RFR (XS) 8251949: ZGC: Set explicit heap size for compiler/gcbarriers tests

[Aleksey Shipilev]

On 8/19/20 9:00 AM, Per Liden wrote:
> Hi,
> 
> On 8/18/20 2:41 PM, Aleksey Shipilev wrote:
>> Testbug:
>>     https://bugs.openjdk.java.net/browse/JDK-8251949
>>
>> On large TR 3970X, jtreg asks for MaxRAMFraction=0, which makes ZGC use
>> 128M heap for some tests. These tests reliably fail with OOM in
>> jdk-updates/jdk11u-dev:
>>     compiler/gcbarriers/UnsafeIntrinsicsTest.java
>>     compiler/loopopts/TestRangeCheckPredicatesControl.java
>>
>> While they do not fail in jdk/jdk, I think it makes more sense to add
>> explicit heap sizes in jdk/jdk, and then backport to 11u. The
> 
> If it's only a problem in jdk11u why stick this in jdk/jdk?

I thought that test configurations are better to agree in all maintained repositories. I haven't 
pushed yet, can do it just in 11u, if you think that's better.

-- 
Thanks,
-Aleksey