[11u] RFR (XS) 8261251: Shenandoah: Use object size for full GC humongous compaction

[Aleksey Shipilev]

Thanks, tagged.

On 2/15/21 9:03 PM, Roman Kennke wrote:
> Good! Thanks,
> Roman
> 
>> Original bug:
>>     https://bugs.openjdk.java.net/browse/JDK-8261251
>>     https://git.openjdk.java.net/jdk/commit/deb0544f
>>
>> The patch does not apply cleanly to 11u, because of the
>> shenandoahMarkCompact -> shenandoahFullGC rename. I applied the same
>> patch to the new file without problems.
>>
>> 11u variant:
>>
>> diff -r a4e1ec47729f
>> src/hotspot/share/gc/shenandoah/shenandoahMarkCompact.cpp
>> --- a/src/hotspot/share/gc/shenandoah/shenandoahMarkCompact.cpp Thu Jan
>> 28 09:50:21 2021 +0000
>> +++ b/src/hotspot/share/gc/shenandoah/shenandoahMarkCompact.cpp Mon Feb
>> 15 10:50:03 2021 +0100
>> @@ -905,7 +905,7 @@
>>
>>          Copy::aligned_conjoint_words(heap->get_region(old_start)->bottom(),
>>                                       heap->get_region(new_start)->bottom(),
>> -
>> ShenandoahHeapRegion::region_size_words()*num_regions);
>> +                                   words_size);
>>
>>          oop new_obj = oop(heap->get_region(new_start)->bottom());
>>          new_obj->init_mark_raw();
>>
>> Testing: hotspot_gc_shenandoah; tier{1,2} with Shenandoah
>>
> 


-- 
Thanks,
-Aleksey