RFR: 8230109: G1DirtyCardQueueSet should use card counts rather than buffer counts
Kim Barrett
kim.barrett at oracle.com
Thu Aug 29 21:49:42 UTC 2019
> On Aug 29, 2019, at 5:26 PM, sangheon.kim at oracle.com wrote:
>
> Hi Kim,
>
> On 8/27/19 7:54 AM, Kim Barrett wrote:
>>> On Aug 27, 2019, at 3:34 AM, Stefan Johansson <stefan.johansson at oracle.com> wrote:
>>>
>>>
>>>
>>>> 26 aug. 2019 kl. 22:48 skrev Kim Barrett <kim.barrett at oracle.com>:
>>>>
>>>>> On Aug 26, 2019, at 2:29 PM, Stefan Johansson <stefan.johansson at oracle.com> wrote:
>>>>>
>>>>>
>>>>>
>>>>>> 26 aug. 2019 kl. 17:42 skrev Kim Barrett <kim.barrett at oracle.com>:
>>>>>>
>>>>>>> On Aug 26, 2019, at 4:52 AM, Stefan Johansson <stefan.johansson at oracle.com> wrote:
>>>>>>>> CR:
>>>>>>>> https://bugs.openjdk.java.net/browse/JDK-8230109
>>>>>>>>
>>>>>>>> Webrev:
>>>>>>>> http://cr.openjdk.java.net/~kbarrett/8230109/open.00/
>>>>>>> I really like the cleanups you’ve done in this area of the code base and this one is no exception. Looks good, just one question around the different G1ConcRefinement-flags (threshold and zones). Couldn’t we make these be number of cards and get rid of the buffers_to_cards conversion in g1ConcurrentRefine.cpp?
>>>>>> Those are product options; changing their semantics like that is not so easy.
>>>>>>
>>>>> True, but I think it is something we want to do in the longer run so maybe creating an enhancement for it to track it?
>>>> Maybe, and maybe not.
>>>>
>>>> […]
>>>>
>>>> So I'd prefer they were left alone until such time as we have a better
>>>> understanding of what we actually want / need here.
>>>>
>>> Sounds like a good plan, and let’s hope we can figure out some good names :)
>> Thanks.
> Looks good to me too.
>
> Thanks,
> Sangheon
Thanks.
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