Hi Alan, If I use ManagementFactoryHelper to get memory pools, I still need to modify src/java.management/share/classes/module-info.java to export sun.management, right?
Thanks, Denghui Dong ------------------------------------------------------------------ From:Alan Bateman <alan.bate...@oracle.com> Send Time:2020年3月5日(星期四) 16:46 To:董登辉(卓昂) <denghui....@alibaba-inc.com>; Erik Gahlin <erik.gah...@oracle.com>; hotspot-jfr-dev <hotspot-jfr-...@openjdk.java.net>; core-libs-dev <core-libs-dev@openjdk.java.net> Subject:Re: RFR: 8238665: Add JFR event for direct memory statistics On 05/03/2020 02:44, Denghui Dong wrote: > Hi Erik, > Updated. > Webrev: http://cr.openjdk.java.net/~ddong/8238665/webrev.01/ > ManagementFactoryHelper has a method to get the list of MXBeans for the buffer pools. That could be easily changed to return an unmodifable list. That would allow you to emit statistics for memory-mapped files too (the current patch seems to be limited to emitting stats for direct buffers). -Alan.
