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Baidu App Technology
Baidu App Technology
Oct 24, 2022 · Mobile Development

Understanding SIGKILL Crashes and Capturing Them with MetricKit on iOS

A SIGKILL crash indicates the OS forcibly terminated an iOS app, which cannot be caught directly, but MetricKit (iOS 14+) can automatically collect diagnostic payloads after restart, allowing developers to extract termination reasons, stack traces, understand codes like 0x8badf00d, and address common causes such as main‑thread watchdog timeouts and deadlocks.

MetricKitObjective-CPerformance
0 likes · 10 min read
Understanding SIGKILL Crashes and Capturing Them with MetricKit on iOS
ByteDance Terminal Technology
ByteDance Terminal Technology
Apr 22, 2022 · Mobile Development

MetricKit Overview: iOS Performance and Diagnostic Monitoring

MetricKit, introduced in iOS 13 and expanded in iOS 14, provides a low‑overhead, system‑driven way to collect app performance, power, and crash diagnostics over the last 24 hours, enabling developers to upload, analyze, and optimize their iOS applications without third‑party SDKs.

DiagnosticsMetricKitMobile Development
0 likes · 18 min read
MetricKit Overview: iOS Performance and Diagnostic Monitoring
Sohu Tech Products
Sohu Tech Products
Jun 23, 2021 · Mobile Development

Ultimate Application Performance Survival Guide: iOS Optimization Using Xcode Tools

This guide explains how to improve iOS app performance by monitoring eight key metrics—battery, launch time, hang rate, memory, disk writes, scrolling, termination, and MXSignposts—using Xcode Organizer, MetricKit, Instruments, XCTest, and the App Store Connect API.

App OptimizationMetricKitMobile Development
0 likes · 9 min read
Ultimate Application Performance Survival Guide: iOS Optimization Using Xcode Tools