# Tikv Scheduler (A)


![left](./student-guide/diagram/26-scheduler-01-01.png)

+ Grafana Monitoring TiKV Details —> Scheduler - prewrite —> Scheduler command duration
  + The scheduler command duration is the same as the gRPC message duration trend. Next, compare it with the scheduler latch wait duration to see if it is slow in the acquisition period of latch
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- Grafana Monitoring TiKV Details —> Scheduler - prewrite —> Scheduler command duration
Scheduler latch wait duration