> Just in time for the holidays I have completed an implementation of the JFR > functionality for AIX. As a side note, this is my first submission to OpenJDK > 👋 > > ### Implementation notes and alternatives considered > > After modifying the build system to allow the --enable-jvm-feature-jfr to > work on AIX, my task was to implement the interfaces from os_perf.hpp. The > os_perf_aix.cpp implementation that existed was, I believe, a copy of the > Linux implementation. A review of the code in that file showed that > NetworkInterface, CPUPerformanceInterface, and SystemProcessInterface would > require modification to work on AIX. Using the Linux implementation as a > guide, I initially expected to use files from the aix procfs like > /proc/<pid>/psinfo, and /proc/<pid>/status in a manner similar to the Linux > implementation. However, I ended up using libperfstat for all functionality > required by the interfaces. > > ### Testing > > Testing for JFR seems to be quite light in the repo both before and after > this change. In addition to performing manual testing, I have added some > basic sanity checks that ensure events can be created and committed (using > jtreg), and performs some basic checks on the results of the interface member > functions (using gtest). > > ### More notes > > I've sent an email to the JFR group about a TOC overflow warning I > encountered while building (for the release server target). I believe the fix > is to pass -qpic=large when using the xlc toolchain, but my modifications to > flags-cflags.m4 have not been successful in removing this warning.
Tyler Steele has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision: Clean up & testing - Run JFR tests in test/jdk/jdk/jfr - Fix issues found from above test suite - Remove unecessary jtreg & gtest tests - Remove ineffective `qpic=large` - TODO: jdk/jfr/event/runtime/TestNativeLibrariesEvent.java ------------- Changes: - all: https://git.openjdk.java.net/jdk/pull/6885/files - new: https://git.openjdk.java.net/jdk/pull/6885/files/79bfca43..cc04740a Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=6885&range=06 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=6885&range=05-06 Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod Patch: https://git.openjdk.java.net/jdk/pull/6885.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/6885/head:pull/6885 PR: https://git.openjdk.java.net/jdk/pull/6885
