Trace for Blog (SystraceForBlog)
July 16, 2026 · View on GitHub
Perfetto, legacy Systrace HTML, and ART method-trace case files used by Android Performance articles. The legacy repository name is preserved because published articles link to its directories.
Android performance ecosystem
The Android Performance Ecosystem brings its navigation Hub and seven core projects into an optional path from instrumentation and capture to analysis, system knowledge, and reproducible cases.
| Stage | Project | Purpose | Address |
|---|---|---|---|
| Navigate | Android Performance Ecosystem | Maintain the shared project map, handoff metadata, generated README navigation, and drift checks. | GitHub |
| Instrument | TraceFix | Inject app-side android.os.Trace sections at build time so method work is visible at runtime. | GitHub |
| Capture and measure | Perfetto Tools | Capture repeatable Perfetto traces and collect FPS or Simpleperf measurements. | GitHub |
| Analyze | SmartPerfetto | Investigate traces with an AI-assisted Web UI, CLI, reports, sessions, comparisons, and evidence workflow. | GitHub |
| Agent analysis | Perfetto Skills | Give agents a portable Perfetto analysis Skill for Android, Linux, and Chromium, with selected assets synchronized through pinned workflows. | GitHub |
| Learn | Android Performance Blog | Teach Perfetto and Systrace analysis through articles, system explanations, and case studies. | AndroidPerformance.com · GitHub |
| System knowledge | Android Internal Wiki | An alpha knowledge base for Android mechanisms from App to Framework, Native, and Kernel. | Coming soon |
| Reproduce | Trace for Blog (SystraceForBlog) | Provide the Perfetto, Systrace, and related case files used by articles for hands-on reproduction. | GitHub |
Case catalog
catalog.json is the machine-readable inventory. It covers all
15 existing artifacts with byte size, SHA-256, content format, packaging,
article mapping, provenance, license/consent state, and privacy/sanitization
review state.
| Case ID | Area | Artifacts | Related article |
|---|---|---|---|
perfetto-aosp-demo-scroll | Scrolling / rendering | 1 Perfetto protobuf | MainThread and RenderThread |
perfetto-wechat-moments-jank | Scrolling jank | Perfetto protobuf + ZIP copy | Not recorded |
systrace-main-render-wangzhe | MainThread / RenderThread | Systrace HTML ZIP + ART method trace | Article |
systrace-main-render-flutter-wanandroid | Flutter rendering | Systrace HTML ZIP + ART method trace | Article |
systrace-binder-app-launch | Binder | 1 Systrace HTML ZIP | Article |
systrace-input-launcher-scroll | Input | 1 Systrace HTML ZIP | Article |
systrace-input-list-jank | Input / jank | 1 Systrace HTML ZIP | Article |
systrace-smooth-launchers | Scrolling smoothness | 3 Systrace HTML ZIPs | Series |
systrace-twitter-jank | Scrolling jank | 1 Systrace HTML ZIP | Not recorded |
systrace-triple-buffer | Buffering / rendering | 1 ZIP containing 5 Systrace HTML files | Article |
Use a case
Analyze a Perfetto protobuf with SmartPerfetto:
smp run "Android_Perfetto/demo_app_aosp_scroll.perfetto-trace" "Analyze scrolling jank"
Or ask an agent with Perfetto Skills to use
$perfetto-performance-analysis on the same file. Legacy *.html.zip files are
self-contained Systrace pages: inspect the archive first, extract locally, then
open the HTML in a browser. ART *.trace files are method traces, not Perfetto
protobufs.
Data boundary
All current artifacts are historical. Their original license, consent, privacy
review, or sanitization record was not preserved, so the catalog deliberately
uses null and pending. Public visibility does not create a blanket data
license. Read DATA_POLICY.md before using or contributing data.
LICENSE-CODE covers only original documentation and validation code, not the
trace/archive artifacts or linked articles.
Verify
python3 scripts/validate_catalog.py
python3 -m unittest discover -s tests -v
git diff --check
The validator checks inventory completeness, hashes, sizes, required provenance fields, safe relative paths, ZIP member paths, encryption, decompressed size, member count, and compression ratio without extracting archives to disk.