.PFTRACE File Extension

Android mm_events Trace

Developer Google
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Category Developer Files
Format Zip

What is a PFTRACE file?

A PFTRACE file is a system trace file created by an Android device running Android 12 or later. It contains a report about a high memory pressure event the device experienced. You can view PFTRACE files' contents in Perfetto.

More Information

Android 10 and later versions use a system tracing tool called Perfetto to perform and record traces. Android 12 and later versions use a Perfetto sub-component called mm_events to record memory-related statistics when a device experiences memory pressure.

Mm_events saves memory pressure event statistics in PFTRACE files. Specifically, mm_events saves these statistics in a file named systrace.pftrace, which is located in the following directory:

FS/​data/​misc/​perfetto-traces/​bugreport

Common PFTRACE Filenames

systrace.pftrace - The standard high memory pressure event trace file mm_events creates.

How to open a PFTRACE file

Developers can open PFTRACE files and view the system traces they contain in Perfetto (Web). To do so:

  1. Open your web browser and go to https://ui.perfetto.dev.
  2. Select Open trace file.
  3. Navigate to and open your PFTRACE file.
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Programs that open PFTRACE files

Web
Updated January 5, 2022

Verified by FileInfo.com

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