RFR: 8252221: Use multiple workers for Parallel GC pre-touching [v4]

[Amit Pawar]

On Tue, 13 Oct 2020 16:59:31 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

>> Amit Pawar has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Updated the code as per the review.
>
> src/hotspot/share/gc/shared/preTouchTask.cpp line 66:
> 
>> 64:                             size_t page_size, WorkGang* pretouch_gang) {
>> 65:   PretouchTask task(task_name, start_address, end_address, page_size);
>> 66:   size_t total_bytes = (end_address - start_address);
> 
> Should be using pointer_delta here.

Done.

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PR: https://git.openjdk.java.net/jdk/pull/180