for _, pm := range pms.FindByName(metricMSSQLLockWait) {
        if name := pm.Labels.Get("mssql_instance"); name != "" {
            instances[name] = true
            if res := pm.Labels.Get("resource"); res != "" {
                mx[px+name+"_resource_"+res+"_locks_lock_wait_seconds"] = int64(pm.Value)