This Gauge32 counts how many times the ErrorStats error-counter sample for a CPU has been refreshed with a new measurement since the object was created. An admin can use a stalled Update counter as a sign that RAS error collection for this specific processor has stopped, even if the last reported error values still look benign. For example, if Update stops incrementing on one CPU's ErrorStats while other processors' counters keep climbing, that points to a collection problem isolated to that one socket rather than an absence of errors.