This is related to defect DE276825. Sustaining Engineering has identified some issues related to memory utilization in the Port Performance code.
Spectrum_10.02.01.D231 addresses a bug related to cleanup of stale nodes in Spectrum's internal cache, which impacts the port performance code. It also corrects an issue related to SyncReads and includes additional debugging to help catch future memory growth issues.
This will be addressed in Spectrum 10.3.