RFR(S): 8227692: Remove develop feature PrintMallocStatistics

[Daniel D. Daugherty]

Thanks. Sounds good.

Dan


On 7/16/19 4:15 PM, Doerr, Martin wrote:
> Hi Dan,
>
> I've added the proposal to use "-XX:NativeMemoryTracking=summary -XX:+PrintNMTStatistics" instead.
>
> Thanks,
> Martin
>
>
>> -----Original Message-----
>> From: Daniel D. Daugherty <daniel.daugherty at oracle.com>
>> Sent: Dienstag, 16. Juli 2019 18:04
>> To: Doerr, Martin <martin.doerr at sap.com>; hotspot-runtime-
>> dev at openjdk.java.net
>> Cc: Baesken, Matthias <matthias.baesken at sap.com>
>> Subject: Re: RFR(S): 8227692: Remove develop feature PrintMallocStatistics
>>
>> For anyone that happens to be searching JBS for what happened to the
>> '-XX:+PrintMallocStatistics' option, you might want to include some
>> guidance on how they get the equivalent information from NMT...
>>
>> A short note in JDK-8227692 should suffice...
>>
>> Dan
>>
>>
>> On 7/15/19 4:16 PM, Doerr, Martin wrote:
>>> Hi,
>>>
>>> as announced on hotspot-dev, I'd like to remove the debug build feature
>> for allocation statistics "AllocStats" (controlled by develop flag -
>> XX:+PrintMallocStatistics).
>>> I've closed JDK-8227597<https://bugs.openjdk.java.net/browse/JDK-
>> 8227597> which was a proposal to reduce the performance impact of it, but
>> several people have suggested to remove this feature which is even better
>> IMHO.
>>> Bug:
>>> https://bugs.openjdk.java.net/browse/JDK-8227692
>>>
>>> Webrev:
>>>
>> http://cr.openjdk.java.net/~mdoerr/8227692_remove_PrintMallocStatistics/
>> webrev.00/
>>> I've also taken over the reworked inc_stat_counter from JDK-
>> 8227597<https://bugs.openjdk.java.net/browse/JDK-8227597>
>> (allocation.inline.hpp).
>>> Please review.
>>>
>>> Best regards,
>>> Martin
>>>