RFR (S) 8247751: Shenandoah: options tests should run with smaller heaps

[Roman Kennke]

Yeah, that is generally a good idea to run tests with specified
smallish heap size. Patch looks good!

Thanks,
Roman

On Wed, 2020-06-17 at 13:44 +0200, Aleksey Shipilev wrote:
> RFE:
>   https://bugs.openjdk.java.net/browse/JDK-8247751
> 
> On huge machines, the default heap sizes are quite large, and memory
> zapping takes quite some time
> to startup in fastdebug mode. We should be running at least "options"
> tests with smaller default heaps.
> 
> Fix:
>   https://cr.openjdk.java.net/~shade/8247751/webrev.01/
> 
> Testing: hotspot_gc_shenandoah (faster now)
>