> The socket read/write JFR events currently use instrumentation of java.base > code using templates in the jdk.jfr modules. This results in some java.base > code residing in the jdk.jfr module which is undesirable. > > JDK19 added static support for event classes. The old instrumentor classes > should be replaced with mirror events using the static support. > > In the java.base module: > Added two new events, jdk.internal.event.SocketReadEvent and > jdk.internal.event.SocketWriteEvent. > java.net.Socket and sun.nio.ch.SocketChannelImpl were changed to make use of > the new events. > > In the jdk.jfr module: > jdk.jfr.events.SocketReadEvent and jdk.jfr.events.SocketWriteEvent were > changed to be mirror events. > In the package jdk.jfr.internal.instrument, the classes > SocketChannelImplInstrumentor, SocketInputStreamInstrumentor, and > SocketOutputStreamInstrumentor were removed. The JDKEvents class was updated > to reflect all of those changes. > > The existing tests in test/jdk/jdk/jfr/event/io continue to pass with the new > implementation: > Passed: jdk/jfr/event/io/TestSocketChannelEvents.java > Passed: jdk/jfr/event/io/TestSocketEvents.java > > I added a micro benchmark which measures the overhead of handling the jfr > socket events. > test/micro/org/openjdk/bench/java/net/SocketEventOverhead.java. > It needs access the jdk.internal.event package, which is done at runtime with > annotations that add the extra arguments. > At compile time the build arguments had to be augmented in > make/test/BuildMicrobenchmark.gmk
Tim Prinzing has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains ten commits: - remove unused SOCKET_READ and SOCKET_WRITE configurations. - Merge branch 'master' into JDK-8308995 # Conflicts: # src/jdk.jfr/share/classes/jdk/jfr/events/EventConfigurations.java - Avoid exceptions getting address/timeout for jfr event. Remove unused EventConiguration fields SOCKET_READ and SOCKET_WRITE. Remove spurious whitespace. - some changes from review. read0() to implRead() write0() to implWrite() trailing whitespace - fix copyright date - Added micro benchmark to measure socket event overhead. - Some changes from review. Append a 0 to method names being wrapped. Use getHostString to avoid a reverse lookup when fetching the hostname of the remote address. - remove unnecessary cast - 8308995: Update Network IO JFR events to be static mirror events ------------- Changes: https://git.openjdk.org/jdk/pull/14342/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=14342&range=02 Stats: 908 lines in 13 files changed: 533 ins; 369 del; 6 mod Patch: https://git.openjdk.org/jdk/pull/14342.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/14342/head:pull/14342 PR: https://git.openjdk.org/jdk/pull/14342
