性能数据收集

请问，每次采集应用的fps信息，返回的第一条数据总是0，这是ios系统接口的问题吗？，请问有办法处理吗

The issue does not name a source file, test, or collection entry point. Start by reproducing the FPS collection on an iOS device and tracing where the first sample is obtained; done means determining whether the initial zero comes from the iOS interface and documenting or correcting the handling.

Written by the indexing model from the issue text.