# Slow Database Writes

+ Three basic components of TiDB Server, TiKV, and PD
+ Peripheral ecological components such as Binlog and TiCDC
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In the process of using and testing TiDB, many users will encounter the problem of poor write performance of TiDB clusters, but because TiDB includes not only the three basic components of tidb server, tikv server, and pd server, but also peripheral ecological components such as Binlog, TiDC, TiFlash, etc. The architecture is relatively complex, and troubleshooting problems is difficult.

Therefore, based on this, I have sorted out the flow of TiDB write operations and the related monitoring of the corresponding links. I hope to help you troubleshoot and locate the problems related to the slow write performance of TiDB clusters to a certain extent.