# TiKV Client
+ `grpc-connection-count`
  + Set gRPC connection numbers between TiDB to each TiKV, when a large number of concurrent request are sent to one gRPC connection, serially sending the requests in one grpv may become bottleneck. When gRPC connection becomes bottleneck, increasing gRPC connections can improve performance, however, it will in turn consume more system resources.

![center](./student-guide/diagram/06-TiKV-client-01-01.png)
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TiKV client
- grpc-connection-count
  - Set the number of grpc connections between TiDB and each TiKV. When a large number of concurrent request are sent to one grpc connection, a single gRPC connection sends request serially, may become a bottleneck. When Gprc connection becomes a bottleneck, setting a larger number of gRPC connections can improve performance, but at the cost of consuming more system resources.