[tracing] Introduce persistent trace event categories [chromium/src : main]
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Etienne Pierre-Doray (Gerrit)
Jun 29, 2026, 3:54:11 PM (4 days ago) Jun 29
to Dave Tapuska, Chromium LUCI CQ, chromium...@chromium.org, android-bu...@system.gserviceaccount.com, gavinp...@chromium.org, navigation...@chromium.org, spang...@chromium.org, tracing...@chromium.org, wfh+...@chromium.org, creis...@chromium.org, kinuko...@chromium.org, alexmo...@chromium.org, chikamu...@chromium.org, blink-...@chromium.org, scheduler-...@chromium.org
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Etienne Pierre-Doray (Gerrit)
Jun 29, 2026, 6:08:57 PM (4 days ago) Jun 29
to Patrick Monette, Dave Tapuska, Chromium LUCI CQ, chromium...@chromium.org, android-bu...@system.gserviceaccount.com, gavinp...@chromium.org, navigation...@chromium.org, spang...@chromium.org, tracing...@chromium.org, wfh+...@chromium.org, creis...@chromium.org, kinuko...@chromium.org, alexmo...@chromium.org, chikamu...@chromium.org, blink-...@chromium.org, scheduler-...@chromium.org
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File-level comment, Patchset 5 (Latest):
Etienne Pierre-Doray . resolved
+pmonette@ for memory_pressure
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Patrick Monette (Gerrit)
Jun 29, 2026, 8:32:39 PM (4 days ago) Jun 29
to Etienne Pierre-Doray, Dave Tapuska, Chromium LUCI CQ, chromium...@chromium.org, android-bu...@system.gserviceaccount.com, gavinp...@chromium.org, navigation...@chromium.org, spang...@chromium.org, tracing...@chromium.org, wfh+...@chromium.org, creis...@chromium.org, kinuko...@chromium.org, alexmo...@chromium.org, chikamu...@chromium.org, blink-...@chromium.org, scheduler-...@chromium.org
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Etienne Pierre-Doray (Gerrit)
Jul 1, 2026, 7:43:58 AM (2 days ago) Jul 1
to Rakina Zata Amni, Patrick Monette, Chromium LUCI CQ, chromium...@chromium.org, android-bu...@system.gserviceaccount.com, gavinp...@chromium.org, navigation...@chromium.org, spang...@chromium.org, tracing...@chromium.org, wfh+...@chromium.org, creis...@chromium.org, kinuko...@chromium.org, alexmo...@chromium.org, chikamu...@chromium.org, blink-...@chromium.org, scheduler-...@chromium.org
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File-level comment, Patchset 8 (Latest):
Etienne Pierre-Doray . resolved
-dtapuska@ is OOO, +rakina@ for content/
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Bug id? Just to get some context.
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Rakina Zata Amni (Gerrit)
Jul 2, 2026, 6:34:55 AM (yesterday) Jul 2
to Etienne Pierre-Doray, Patrick Monette, Chromium LUCI CQ, chromium...@chromium.org, android-bu...@system.gserviceaccount.com, gavinp...@chromium.org, navigation...@chromium.org, spang...@chromium.org, tracing...@chromium.org, wfh+...@chromium.org, creis...@chromium.org, kinuko...@chromium.org, alexmo...@chromium.org, chikamu...@chromium.org, blink-...@chromium.org, scheduler-...@chromium.org
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Etienne Pierre-Doray (Gerrit)
Jul 2, 2026, 8:13:12 AM (yesterday) Jul 2
to Rakina Zata Amni, Patrick Monette, Chromium LUCI CQ, chromium...@chromium.org, android-bu...@system.gserviceaccount.com, gavinp...@chromium.org, navigation...@chromium.org, spang...@chromium.org, tracing...@chromium.org, wfh+...@chromium.org, creis...@chromium.org, kinuko...@chromium.org, alexmo...@chromium.org, chikamu...@chromium.org, blink-...@chromium.org, scheduler-...@chromium.org
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Chromium LUCI CQ (Gerrit)
Jul 2, 2026, 9:40:46 AM (yesterday) Jul 2
to Etienne Pierre-Doray, Rakina Zata Amni, Patrick Monette, chromium...@chromium.org, android-bu...@system.gserviceaccount.com, gavinp...@chromium.org, navigation...@chromium.org, spang...@chromium.org, tracing...@chromium.org, wfh+...@chromium.org, creis...@chromium.org, kinuko...@chromium.org, alexmo...@chromium.org, chikamu...@chromium.org, blink-...@chromium.org, scheduler-...@chromium.org
Chromium LUCI CQ submitted the change![]( "Open in Gerrit")
Change information
Commit message:
[tracing] Introduce persistent trace event categories
- isolate a few persistent events and categories that describe high level state (not exhaustive) and are low throughput.
- Add "persistent" tag to those categories (reused or new)
This lets us create trace configs that write those events to a separate
buffer and are kept more consistently instead of being overwritten
in the main ring buffer.
Bug: 530102282
Change-Id: If4809b756985557a506becef3aedfaa59d8e1617
Reviewed-by: Rakina Zata Amni <rak...@chromium.org>
Reviewed-by: Patrick Monette <pmon...@chromium.org>
Commit-Queue: Etienne Pierre-Doray <etie...@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1656059}
Files:
- M base/memory/memory_pressure_listener_registry.cc
- M base/trace_event/builtin_categories.h
- M components/memory_pressure/memory_pressure_voter.cc
- M content/browser/renderer_host/render_frame_host_impl.cc
- M content/browser/web_contents/web_contents_impl.cc
- M third_party/blink/renderer/platform/scheduler/common/back_forward_cache_disabling_feature_tracker.cc
- M third_party/blink/renderer/platform/scheduler/common/back_forward_cache_disabling_feature_tracker.h
- M third_party/blink/renderer/platform/scheduler/main_thread/frame_scheduler_impl.cc
- M third_party/blink/renderer/platform/scheduler/main_thread/frame_scheduler_impl.h
Change size: M
Delta: 9 files changed, 55 insertions(+), 48 deletions(-)
Branch: refs/heads/main
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Code-Review: +1 by Patrick Monette, +1 by Rakina Zata Amni
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