This is the fourth article in the Perfetto series, explaining how to use trace_processor_shell to open large files exceeding 2GB locally. In actual problem analysis, we often encounter very large Trace files (greater than 2GB) that may fail to open in ui.perfetto.dev because of browser memory limits. The limit applies to memory used while parsing, not directly to the trace file’s size. In this case, we can use the official trace_processor_shell tool to open large files locally.

When I started this series, Perfetto had largely replaced Systrace in my daily work, and the OPPO and vivo teams I encountered were also migrating. Newcomers found the interface overwhelming and asked me to explain the subjects of my Systrace articles through Perfetto.

This is the third article in the Android App ANR series, focusing on real-world ANR cases. The series includes:

1. Android App ANR Series 1: Understanding Android ANR Design Philosophy
2. Android App ANR Series 2: ANR Analysis Workflow and Key Logs
3. Android App ANR Series 3: ANR Case Studies

This is the second article in the Android App ANR series, focusing on ANR analysis methodology and key logs. The series includes:

1. Android App ANR Series 1: Understanding Android ANR Design Philosophy
2. Android App ANR Series 2: ANR Analysis Methodology and Key Logs
3. Android App ANR Series 3: ANR Case Studies

This is the first article in the Android App ANR series, mainly analyzing the design philosophy of Android ANR from a system perspective. The series directory is as follows:

1. Android App ANR Series 1: Understanding Android ANR Design Philosophy
2. Android App ANR Series 2: ANR Analysis Routines and Key Log Introduction
3. Android App ANR Series 3: ANR Case Sharing