Re: RFR: JDK-8306441: Two phase segmented heap dump [v23]

2023-08-02 Thread Yi Yang
On Wed, 2 Aug 2023 13:11:51 GMT, Kevin Walls wrote: > > > > Yes, dividing testing by feature so we have HeapDumpTest, > HeapDumpCompressedTest, HeapDumpParallelTest... that sounds good. > > Currently the HeapDumpTest does more parallel testing than > IntegrityHeapDumpTest, so I didn't unders

Re: RFR: JDK-8306441: Two phase segmented heap dump [v23]

2023-08-02 Thread Kevin Walls
On Wed, 2 Aug 2023 11:33:17 GMT, Yi Yang wrote: >> ### Motivation and proposal >> Hi, heap dump brings about pauses for application's execution(STW), this is >> a well-known pain. JDK-8252842 have added parallel support to heapdump in an >> attempt to alleviate this issue. However, all concurre

Re: RFR: JDK-8306441: Two phase segmented heap dump [v23]

2023-08-02 Thread Yi Yang
On Wed, 2 Aug 2023 11:33:17 GMT, Yi Yang wrote: >> ### Motivation and proposal >> Hi, heap dump brings about pauses for application's execution(STW), this is >> a well-known pain. JDK-8252842 have added parallel support to heapdump in an >> attempt to alleviate this issue. However, all concurre

Re: RFR: JDK-8306441: Two phase segmented heap dump [v23]

2023-08-02 Thread Kevin Walls
On Wed, 2 Aug 2023 11:33:17 GMT, Yi Yang wrote: >> ### Motivation and proposal >> Hi, heap dump brings about pauses for application's execution(STW), this is >> a well-known pain. JDK-8252842 have added parallel support to heapdump in an >> attempt to alleviate this issue. However, all concurre

Re: RFR: JDK-8306441: Two phase segmented heap dump [v23]

2023-08-02 Thread Yi Yang
> ### Motivation and proposal > Hi, heap dump brings about pauses for application's execution(STW), this is a > well-known pain. JDK-8252842 have added parallel support to heapdump in an > attempt to alleviate this issue. However, all concurrent threads > competitively write heap data to the sam