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android / platform / tools / trebuchet / refs/heads/android10-mainline-networking-release
commit5823bca7a0c085374cbb6737291752765a840b45[log] [tgz]
authorPaul Duffin <paulduffin@google.com>Thu Jun 13 00:21:44 2019 -0700
committerandroid-build-merger <android-build-merger@google.com>Thu Jun 13 00:21:44 2019 -0700
treed7b54681047cfc1e4336297e3a0c2d1b3f81f242
parentba58b1ff29ddde31f8f8c332f2f06e9df24be3ab [diff]
parent4e2f58d473fda6b1b77989b4dae058e783303fe7 [diff]
Remove superfluous use of no_framework_libs: true am: 5d2df37457 am: 329561bf0d
am: 4e2f58d473

Change-Id: I7205295d8faa75fcebec394cb576f2d93cf7f70a
tree: d7b54681047cfc1e4336297e3a0c2d1b3f81f242
  1. core/
  2. gradle/
  3. scripts/
  4. trebuchet/
  5. .gitignore
  6. Android.bp
  7. build.gradle
  8. CONTRIBUTING.md
  9. gradle.properties
  10. gradlew
  11. gradlew.bat
  12. LICENSE
  13. OWNERS
  14. README.md
  15. settings.gradle
  16. TEST_MAPPING
README.md

Trebuchet

Trebuchet is a Kotlin library for parsing and analyzing Android trace files generated by the atrace or systrace commands. This is not an officially supported Google product.

Library

The code for the Trebuchet library can be found in the core/ directory.

Bundled Programs

Trebuchet comes bundled with several programs for analyzing one or more trace files.

Startup Analyzer

The Startup Analyzer program takes a trace file, detects any startup events that occurred during the traced time period, and prints information about the events. If Trebuchet is built using the Android build system, there will be a StartupAnalyzerKt program placed into a directory that is a member of the PATH system variable. If you wish to use Gradle, you can use the startup-analyzer.sh script located in the scripts/ directory.

Startup Summarizer

The Startup Summarizer program takes a set of trace files, detects startup events in each file, and computes average and standard deviation for startup stats, broken down by program name, compiler filter, and cache status. If Trebuchet is built using the Android build system, there will be a StartupSummarizerKt program placed into a directory that is a member of the PATH system variable. If you wish to use Gradle, you can use the startup-summarizer.sh script located in the scripts/ directory.

Helper Scripts

The scripts/ directory contains a shell script called run-startup.sh, which will start a trace, launch an activity given a package name and an activity name, transfer the trace file to the host machine, and run the StartupAnalyzer.