RFR: 8256155: Allow multiple large page sizes to be used on Linux [v32]

[Marcus G K Williams]

On Tue, 11 May 2021 10:19:16 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

>> Marcus G K Williams has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 53 commits:
>> 
>>  - Remove reserve_memory_special_huge_tlbfs mods except assert
>>    
>>    Signed-off-by: Marcus G K Williams <marcus.williams at intel.com>
>>  - Merge branch 'master' into update_hlp
>>  - Merge branch 'master' into update_hlp
>>  - Remove extranous vm_page_size check
>>    
>>    Signed-off-by: Marcus G K Williams <marcus.williams at intel.com>
>>  - kstefanj review
>>    
>>    Signed-off-by: Marcus G K Williams <marcus.williams at intel.com>
>>  - Set LargePageSizeInBytes to largepage upper limit
>>    
>>    Signed-off-by: Marcus G K Williams <marcus.williams at intel.com>
>>  - Merge branch 'master' into update_hlp
>>  - Fix merge
>>    
>>    Signed-off-by: Marcus G K Williams <marcus.williams at intel.com>
>>  - Merge branch 'master' into update_hlp
>>  - Merge branch 'master' into update_hlp
>>  - ... and 43 more: https://git.openjdk.java.net/jdk/compare/0790e601...7368e7d4
>
> src/hotspot/os/linux/os_linux.cpp line 3765:
> 
>> 3763:     LogStream ls(lt);
>> 3764:     ls.print("Available page sizes: ");
>> 3765:     _page_sizes.print_on(&ls);
> 
> I'd prefer to log *all* page sizes, not the filtered list we use. Or print both, "All" and "Usable"?

Agreed.

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PR: https://git.openjdk.java.net/jdk/pull/1153