RFR: 8225084: gc/z/TestHighUsage.java fails with unexpected allocation stall

[Per Liden]

Thanks Erik!

/Per

On 6/5/19 10:39 AM, Erik Österlund wrote:
> Hi Per,
> 
> Looks good.
> 
> Thanks,
> /Erik
> 
> On 2019-06-05 08:47, Per Liden wrote:
>> After talking to Erik, I reworked the test to not depend on timing to 
>> avoid allocation stalls.
>>
>> New webrev: http://cr.openjdk.java.net/~pliden/8225084/webrev.1
>>
>> /Per
>>
>> On 5/31/19 9:46 AM, Per Liden wrote:
>>> TestHighUsage might fail in case the test system is starved on CPU. 
>>> This patch adds a delay to allow for a GC cycle to complete even in 
>>> those situations. Also adding gc+start logging to allow for easier 
>>> debugging of test failures.
>>>
>>> Bug: https://bugs.openjdk.java.net/browse/JDK-8225084
>>> Webrev: http://cr.openjdk.java.net/~pliden/8225084/webrev.0
>>>
>>> /Per
>