RFR: 8368087: ZGC: Make ZStatLoad::print() logging conditional on os::loadavg support

Fri Sep 19 11:05:12 UTC 2025

ZStatLoad::print() logs the load average on the machine, however it does not check whether the operation is supported or not. This results in printing a load average of 0/0/0 on Windows which is a bit misleading.

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Commit messages:
 - 8368087: ZGC: Make ZStatLoad::print() logging conditional on os::loadavg support

Changes: https://git.openjdk.org/jdk/pull/27389/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27389&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8368087
  Stats: 6 lines in 1 file changed: 1 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/27389.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27389/head:pull/27389

PR: https://git.openjdk.org/jdk/pull/27389