RFR: 8057174: MemoryMXBean tests -- TEST FAILED: chunkSize: 6291456 is less than YOUNG_GEN_SIZE: 8388608

[Stefan Karlsson]

(Adding GC)

Hi,

Could I get a couple of reviews for this test fix?

StefanK

On 2014-09-05 14:01, Stefan Karlsson wrote:
> Hi all,
>
> Here's an updated version of the test:
> http://cr.openjdk.java.net/~stefank/8057174/webrev.01.delta/
> http://cr.openjdk.java.net/~stefank/8057174/webrev.01/
>
> 1) The max == -1 check would unnecessarily fail the test (if it ever 
> would happen).
>
> 2) Some flags/configurations could increase the young gen size because 
> of alignment restrictions in the heap sizing policies. I've updated 
> the test to make sure that we run
> a) with small G1 heap region sizes
> b) without large pages
>
> I had to remove the RunUtil.runTestKeepGcOpts targets to minimize the 
> risk that someone will add arbitrary GC command line options to the test.
>
> thanks,
> StefanK
>
> On 2014-09-04 16:34, Stefan Karlsson wrote:
>> Hi all,
>>
>> Please review this patch to make these tests a bit more stable. I've 
>> changed the code to always allocate objects that are larger than the 
>> young gen size.
>>
>> http://cr.openjdk.java.net/~stefank/8057174/webrev.00/
>>
>> I've tested this by running the tests through jprt.
>>
>> thanks,
>> StefanK
>