RFR (S) 8205725: Update the JVMTI Spec for Heap Sampling

[serguei.spitsyn at oracle.com]

Thanks a lot for reviews, Alex!
Serguei

On 7/17/18 15:38, Alex Menkov wrote:
> The changes look good to me.
>
> --alex
>
> On 07/16/2018 16:10, serguei.spitsyn at oracle.com wrote:
>> Hi all,
>>
>> We need at least one more review before pushing it.
>>
>> Thanks,
>> Serguei
>>
>>
>> On 7/16/18 16:07, JC Beyler wrote:
>>> Hi all,
>>>
>>> The CSR has recently been approved, could someone else review the 
>>> spec update webrev:
>>> http://cr.openjdk.java.net/~jcbeyler/8205725/webrev.03/ 
>>> <http://cr.openjdk.java.net/%7Ejcbeyler/8205725/webrev.03/>
>>>
>>> The associated bug is here: 
>>> https://bugs.openjdk.java.net/browse/JDK-8205725
>>> The associated CSR is here: 
>>> https://bugs.openjdk.java.net/browse/JDK-8206940
>>>
>>> Thanks all!
>>> Jc
>>>
>>>
>>> On Thu, Jul 12, 2018 at 2:27 PM serguei.spitsyn at oracle.com 
>>> <mailto:serguei.spitsyn at oracle.com> <serguei.spitsyn at oracle.com 
>>> <mailto:serguei.spitsyn at oracle.com>> wrote:
>>>
>>>     Hi Jc,
>>>
>>>     It looks good to me (including the CSR that I'had already 
>>> reviewed).
>>>     Thank you for preparing a fix for this issue so quickly!
>>>
>>>     Thanks,
>>>     Serguei
>>>
>>>
>>>     On 7/12/18 13:45, JC Beyler wrote:
>>>>     Hi all,
>>>>
>>>>     Could I get a review of an update to the JVMTI Spec for Heap
>>>>     Sampling:
>>>>     http://cr.openjdk.java.net/~jcbeyler/8205725/webrev.03/
>>>> <http://cr.openjdk.java.net/%7Ejcbeyler/8205725/webrev.03/>
>>>>
>>>>     The assoicated bug is here:
>>>>     https://bugs.openjdk.java.net/browse/JDK-8205725
>>>>     The associated CSR is here:
>>>>     https://bugs.openjdk.java.net/browse/JDK-8206940
>>>>
>>>>     The basic reasoning of this webrev/bug/CSR is:
>>>>     - rate is not the right word and should be renamed to interval,
>>>>     this is what provokes the change in the code/tests/API naming.
>>>>     - the spec does not mention that the new sampling interval will
>>>>     take time to be taken into account (you have to wait for a TLAB
>>>>     to be refilled); this adds that precision so that the user is not
>>>>     surprised
>>>>     - the spec explicitly says that the sampling is done via a
>>>>     geometric variable which averages to the sampling interval; it
>>>>     was asked to relax this and the spec should just say that the
>>>>     sampling is pseudo-random and the interval will average out to
>>>>     what the user requested.
>>>>
>>>>     Thanks for all your help,
>>>>     Jc
>>>
>>>
>>>
>>> -- 
>>>
>>> Thanks,
>>> Jc
>>