# Cluster
+ Basic information of `TiKV` cluster:
  + **`Store size:`** The storage size per `TiKV` instance
  + **`Available size:`** The available capacity per `TiKV` instance
  + **`Capacity size:`** The capacity size per `TiKV` instance
  + **`CPU:`** The `CPU` utilization per `TiKV` instance
  + **`Memory:`** The memory usage per `TiKV` instance
  + **`I/O utilization:`** The `I/O` utilization per `TiKV` instance
  + **`MBps:`** The total bytes of read and write in each `TiKV` instance
  + **`QPS:`** The `QPS` per command in each `TiKV` instance
  + ...
![`smart`](CluserPanel_aa_001_20221028.png)

------------------------------------------------------------
Use this information to quickly understand the resource usage of the tidb cluster and whether there is a resource bottleneck.