metrickit-diagnostics

Collect aggregated performance metrics and crash diagnostics from production devices using MetricKit. The framework delivers daily metric payloads (CPU, memory, launch time, hang rate, animation hitches, network usage) and immediate diagnostic payloads (crashes, hangs, disk-write exceptions) with full call-stack trees for triage.

Register a subscriber as early as possible — ideally in application(:didFinishLaunchingWithOptions:) or App.init. MetricKit starts accumulating reports after the first access to MXMetricManager.shared.

MXMetricPayload arrives approximately once per 24 hours containing aggregated metrics. The array may contain multiple payloads if prior deliveries were missed.

使用 MetricKit 收集和分析设备上的性能指标和崩溃诊断。在设置 MXMetricManager、处理 MXMetricPayload 或 MXDiagnosticPayload、通过 MXCallStackTree 处理崩溃/挂起/磁盘写入诊断、添加自定义路标指标或将遥测数据上传到分析后端时使用。 来源：dpearson2699/swift-ios-skills。