RFR: 241263: JFR: Bump native events limit

Stefan Karlsson stefan.karlsson at oracle.com
Thu Mar 19 12:50:11 UTC 2020


Thanks, Erik.

StefanK

On 2020-03-19 11:53, Erik Gahlin wrote:
> Looks good,
>
> (Plan is rewrite the generation of the event C++ classes.
>
> https://bugs.openjdk.java.net/browse/JDK-8216303
>
> What is there today is legacy from when XSLT was used. It is easy to 
> pack ids perfectly with the Java generator program, which will result 
> in somewhat smaller recordings due to LEB128).
>
> Erik
>
>
> On 2020-03-19 11:41, Markus Gronlund wrote:
>> Looks good.
>>
>> Thanks
>> Markus
>>
>> -----Original Message-----
>> From: Stefan Karlsson
>> Sent: den 19 mars 2020 11:15
>> To: hotspot-jfr-dev at openjdk.java.net
>> Subject: RFR: 241263: JFR: Bump native events limit
>>
>> Hi all,
>>
>> Please review this patch to bump the limit of the amount of native 
>> events.
>>
>> https://cr.openjdk.java.net/~stefank/8241263/webrev.01/
>> https://bugs.openjdk.java.net/browse/JDK-8241263
>>
>> I'm hitting this limit when I'm adding new events. When this happens 
>> the events are silently dropped. I propose this short-term solution. 
>> Markus suggests that a more complete solution would be to extract the 
>> correct native event count when the JFR classes are generated.
>>
>> Thanks,
>> StefanK



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