OperatingSystemImpl.c on Windows is limited by its use of clock(), which hits its limit with longer process uptimes.
https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/clock?view=msvc-170 "maximum clock function return value of 2147483.647 seconds, or about 24.8 days" The linked alternative, time(), gives 64-bit time but only seconds. In the example code for time(), there is use of _ftime() to retrieve milliseconds. The example code also notes that _ftime is deprecated, so _ftime_s is used here. ------------- Commit messages: - 8351359: OperatingSystemMXBean stops reporting cpuLoad and processCpuLoad after 24.8 days Changes: https://git.openjdk.org/jdk/pull/25062/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25062&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8351359 Stats: 8 lines in 1 file changed: 5 ins; 0 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/25062.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/25062/head:pull/25062 PR: https://git.openjdk.org/jdk/pull/25062
