RFR: 8236263: Remove experimental streaming events

[Robbin Ehn]

On 1/10/20 12:17 AM, mikhailo.seledtsov at oracle.com wrote:
> Looks good to me,

+1

Thanks, Robbin

> 
> Misha
> 
> On 1/9/20 3:11 PM, Erik Gahlin wrote:
>> Hi,
>>
>> Could I have review of a fix that will remove experimental events related to 
>> Event Streaming.
>>
>> Bug:
>> https://bugs.openjdk.java.net/browse/JDK-8236263
>>
>> Webrev:
>> http://cr.openjdk.java.net/~egahlin/8236263/
>>
>> Testing:
>> jdk/jdk/jfr + tier1, tier2
>>
>> The events have no value for end-users and were added during development to 
>> find bottlenecks in the implementation. The jdk.Flush event which measures 
>> total time of a flush will be kept for now, but disabled in both default.jfc 
>> and profile.jfc. It may be worth mentioning that the Event Streaming API can 
>> react to data being flushed without a jdk.Flush event.
>>
>> It is possible to do further cleanup. For example, not measure the time it 
>> takes to flush stack trace data. But since it is late in the release and the 
>> overhead negligible, I prefer to do that in main line.
>>
>> Thanks
>> Erik
>>