PING: RFR: 8207756: jstat should show CGC STW phases of ZGC

Erik Österlund erik.osterlund at oracle.com
Thu Jul 26 12:54:01 UTC 2018


Hi Yasumasa,

After the integration to jdk-jdk, we want smaller things like this to go 
in upstream instead. So I think this should go into the hotspot-gc list 
and be pushed upstream. You can put a ZGC: prefix to the email.

Thanks,
/Erik

On 2018-07-26 14:30, Yasumasa Suenaga wrote:
> PING: Could you review it?
>
>>    webrev: http://cr.openjdk.java.net/~ysuenaga/JDK-8207756/webrev.00/
>
>
> Yasumasa
>
>
> On 2018/07/18 11:59, Yasumasa Suenaga wrote:
>> Hi all,
>>
>> Please review this change:
>>
>>    JBS: https://bugs.openjdk.java.net/browse/JDK-8207756
>>    webrev: http://cr.openjdk.java.net/~ysuenaga/JDK-8207756/webrev.00/
>>
>> jstat shows CGC STW phases as CGC and CGCT fields since JDK-8153333 .
>> However, ZGC does not adapt to it yet as following:
>>
>> ```
>> $ jstat -gc 1234 1 1
>>   S0C S1C S0U S1U EC EU OC OU MC MU CCSC CCSU YGC YGCT FGC FGCT CGC 
>> CGCT GCT
>>    - - - - - - 514048.0 12288.0 4352.0 3731.2 0.0 0.0 - - - - - - 0.000
>> ```
>>
>> I uploaded webrev which is for jdk/jdk repo. Please tell me if it
>> should be for zgc repo.
>> I'm not an author of ZGC. So I need a sponsor.
>> (I'm a Reviewer of jdk. If this change should be pushed to jdk/jdk,
>> please tell me. I will push it after reviewing.)
>>
>>
>> Thanks,
>>
>> Yasumasa
>>



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