On Tue, 6 May 2025 10:20:22 GMT, Kevin Walls <kev...@openjdk.org> wrote:
> 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. > > Update: GetTickCount64() is a better alternative. This pull request has now been integrated. Changeset: 900b3ff7 Author: Kevin Walls <kev...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/900b3ff7ee933520efe2438fb7c841a4e6a93d17 Stats: 5 lines in 1 file changed: 2 ins; 0 del; 3 mod 8351359: OperatingSystemMXBean: values from getCpuLoad and getProcessCpuLoad are stale after 24.8 days (Windows) Reviewed-by: amenkov, sspitsyn ------------- PR: https://git.openjdk.org/jdk/pull/25062
