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unplugged-system/external/cronet/base/tracing
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ziv-gabel 06ee9615ad Initial commit: AOSP 14 with modifications for Unplugged OS
2025-10-06 13:59:42 +00:00
..
protos Initial commit: AOSP 14 with modifications for Unplugged OS 2025-10-06 13:59:42 +00:00
DIR_METADATA Initial commit: AOSP 14 with modifications for Unplugged OS 2025-10-06 13:59:42 +00:00
perfetto_platform.cc Initial commit: AOSP 14 with modifications for Unplugged OS 2025-10-06 13:59:42 +00:00
perfetto_platform.h Initial commit: AOSP 14 with modifications for Unplugged OS 2025-10-06 13:59:42 +00:00
perfetto_task_runner_unittest.cc Initial commit: AOSP 14 with modifications for Unplugged OS 2025-10-06 13:59:42 +00:00
perfetto_task_runner.cc Initial commit: AOSP 14 with modifications for Unplugged OS 2025-10-06 13:59:42 +00:00
perfetto_task_runner.h Initial commit: AOSP 14 with modifications for Unplugged OS 2025-10-06 13:59:42 +00:00
README.md Initial commit: AOSP 14 with modifications for Unplugged OS 2025-10-06 13:59:42 +00:00
trace_time.cc Initial commit: AOSP 14 with modifications for Unplugged OS 2025-10-06 13:59:42 +00:00
trace_time.h Initial commit: AOSP 14 with modifications for Unplugged OS 2025-10-06 13:59:42 +00:00
tracing_tls.cc Initial commit: AOSP 14 with modifications for Unplugged OS 2025-10-06 13:59:42 +00:00
tracing_tls.h Initial commit: AOSP 14 with modifications for Unplugged OS 2025-10-06 13:59:42 +00:00

README.md

Overhauled performance tracing in Chrome

We are upgrading Chrome's support for performance tracing by replacing Chrome's implementation of TRACE_EVENT macros from //base/trace_event with Perfetto. Perfetto introduces trace events with typed arguments to support privacy-filtered trace recording and a more compact, efficient, and stable trace encoding.

The Perfetto library itself lives in AOSP and is rolled in /third_party/chrome/. Progress is tracked on https://crbug.com/1006541.

The code in this directory connects Chrome to Perfetto's tracing SDK, which implements trace event macros on top of Perfetto's tracing service. This service can be run in-process (e.g. in unit tests), as a Chrome mojo service (see //services/tracing), or as a system service on Android.

For more details, see Perfetto's documentation, Typed trace events in Chrome, and Typed trace events in //base.

Note: The integration with Perfetto's SDK is work-in-progress behind the gn flag "use_perfetto_client_library".