G1 young STW time in MBean

Staffan Larsen staffan.larsen at oracle.com
Tue May 26 06:17:39 UTC 2015


Try out Java Flight Recorder - it has a lot more data in it.

/Staffan

> On 25 maj 2015, at 22:49, Jesper Wilhelmsson <jesper.wilhelmsson at oracle.com> wrote:
> 
> Including the serviceability team.
> 
> There might be plans for G1 monitoring in the future but I don't know too much about what and when. I know there are commercial products that does a pretty good job at G1 monitoring but I don't know if that is an option for you.
> 
> Best,
> /Jesper
> 
> 
> Jakub Kubrynski skrev den 25/5/15 22:42:
>> Maybe we could propose some JSR about that? Using G1 without proper monitoring
>> is like living on the edge :)
>> 
>> Cheers,
>> Jakub
>> 
>> 2015-05-25 18:28 GMT+02:00 Jesper Wilhelmsson <jesper.wilhelmsson at oracle.com
>> <mailto:jesper.wilhelmsson at oracle.com>>:
>> 
>>    As far as I know there hasn't been much development done to get G1 to play
>>    well with the MBeans. And I don't think there is anything planned in this
>>    area. Maybe the serviceability team has other plans for the MBeans.
>>    /Jesper
>> 
>> 
>>    Jakub Kubrynski skrev den 25/5/15 17:43:
>> 
>>        Do you know if there is any development planned in this area? Also there
>>        is no
>>        avgPauseTime, promoted and survived mbean information for G1. The only
>>        available
>>        substitution I see for now is to get safepoint timings.
>> 
>>        Best,
>>        Jakub Kubrynski
>> 
>>        25 maj 2015 17:37 "Jesper Wilhelmsson" <jesper.wilhelmsson at oracle.com
>>        <mailto:jesper.wilhelmsson at oracle.com>
>>        <mailto:jesper.wilhelmsson at oracle.com
>>        <mailto:jesper.wilhelmsson at oracle.com>>> napisał(a):
>> 
>>             Hi Jakub,
>> 
>>             The times reported in the MBeans are total GC times. There is
>>        currently no
>>             way to get STW times through the MBeans.
>> 
>>             Best regards,
>>             /Jesper
>> 
>> 
>>             Jakub Kubrynski skrev den 25/5/15 10:56:
>> 
>>                 Hi,
>> 
>>                 is there any possibility to get STW time for G1 young
>>        collection through
>>                 MBean?
>>                 The duration reported here is IMHO total GC time (concurrent +
>>        stw).
>> 
>>                 --
>>                 Best regards,
>>                 Jakub Kubrynski
>> 
>> 
>>                 _______________________________________________
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>> 
>> 
>> 
>> 
>> --
>> Best regards,
>> Jakub Kubrynski



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