This object reports the total bytes of memory the Meterworks agent has allocated via malloc at the time of polling, though the description notes some of that memory may be sitting idle in internal free pools rather than actively used. Administrators track this alongside the configured ceiling value to catch a memory leak or unusually high consumption before the agent hits its limit. For example, a steadily climbing mwMemUsed value across repeated polls, without a matching increase in real workload, would suggest a memory leak in the agent process.