RFR: 8271195: Use largest available large page size smaller than LargePageSizeInBytes when available [v6]

[Swati Sharma]

On Fri, 18 Feb 2022 11:28:06 GMT, Stefan Johansson <sjohanss at openjdk.org> wrote:

>> Swati Sharma has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   8271195: Review comments resolved
>
> test/hotspot/jtreg/runtime/os/TestExplicitPageAllocation.java line 188:
> 
>> 186: 
>> 187:         for (int i = index;i >= vmPageSizeIndex;i--) {
>> 188:             if(pageSizes[i]) {
> 
> An alternative to this would be to have something like `ArrayList<PageSizeConfig>` to which we only add the configured page sizes. And `PageSizeConfig` would hold both the page size and the number of pages configured for this size. I think that would be slightly easier to follow.

Page Count array size increased to 64 this will fix the reported issue and should be sufficient to handle all the page sizes for 64 bit platforms.

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PR: https://git.openjdk.java.net/jdk/pull/7326