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Bug 1421195 - Add telemetry probe for fraction of restyles that are parallel ; r=emilio
MozReview-Commit-ID: sVN7CWjgni
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@ -65,6 +65,7 @@
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#include "mozilla/StyleAnimationValue.h"
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#include "mozilla/SystemGroup.h"
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#include "mozilla/ServoMediaList.h"
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#include "mozilla/Telemetry.h"
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#include "mozilla/RWLock.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/ElementInlines.h"
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@ -122,6 +123,17 @@ AssertIsMainThreadOrServoLangFontPrefsCacheLocked()
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MOZ_ASSERT(NS_IsMainThread() || sServoFFILock->LockedForWritingByCurrentThread());
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}
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void
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Gecko_RecordTraversalStatistics(uint32_t total, uint32_t parallel)
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{
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// we ignore cases where a page just didn't restyle a lot
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if (total > 30) {
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uint32_t percent = parallel * 100 / total;
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Telemetry::Accumulate(Telemetry::STYLO_PARALLEL_RESTYLE_FRACTION, percent);
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}
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}
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bool
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Gecko_IsInDocument(RawGeckoNodeBorrowed aNode)
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{
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@ -142,6 +142,7 @@ struct FontSizePrefs
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};
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// DOM Traversal.
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void Gecko_RecordTraversalStatistics(uint32_t total, uint32_t parallel);
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bool Gecko_IsInDocument(RawGeckoNodeBorrowed node);
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bool Gecko_FlattenedTreeParentIsParent(RawGeckoNodeBorrowed node);
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bool Gecko_IsSignificantChild(RawGeckoNodeBorrowed node,
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@ -13931,5 +13931,15 @@
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"expires_in_version": "60",
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"kind": "boolean",
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"description": "Tracking how often scripts are loaded with a 'valid' version parameter. This telemetry ID helps us to decide if and when remove the support of script versioning."
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},
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"STYLO_PARALLEL_RESTYLE_FRACTION": {
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"record_in_processes": ["content"],
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"alert_emails": ["manish@mozilla.com"],
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"expires_in_version": "60",
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"kind": "linear",
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"high": 100,
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"n_buckets": 50,
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"description": "Fraction of restyles on a single page that were parallel",
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"bug_numbers": [1421195]
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}
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}
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