Description

Currently Jira Data Center does not display values for system load on the Cluster Monitoring page for Windows environments, showing instead a N/A.
The N/A value was added as a part of the fix for JSWSERVER-20669, since Windows does not support properly getSystemLoadAverage calls used in the Cluster Monitoring plugin.

Suggestion

Implement a feature to allow the Cluster Monitoring to properly display the system load under Windows environments.
This Stack Overflow thread suggests that it might be possible to use com.sun.management.OperatingSystemMXBean.getSystemCpuLoad() (or getProcessCpuLoad() instead of java.lang.management.OperatingSystemMXBean.getSystemLoadAverage().
Additionally this blog post has more information that can help on implementing this suggestion.