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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this # file, You can obtain one at http://mozilla.org/MPL/2.0/. # Adding a new metric? We have docs for that! # https://firefox-source-docs.mozilla.org/toolkit/components/glean/user/new_defin --- $schema: moz://mozilla.org/schemas/glean/metrics/2-0-0 $tags: - 'Core :: XPConnect' performance.clone.deserialize: size: description: > Size of deserialized data, in bytes type: memory_distribution memory_unit: byte bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1717631 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1717631#c4 notification_emails: - sfink@mozilla.com expires: never items: description: > Size of deserialized data, in items type: custom_distribution unit: Serialized items histogram_type: exponential range_max: 2147483646 bucket_count: 50 bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1717631 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1717631#c4 notification_emails: - sfink@mozilla.com expires: never time: description: > Time spent deserializing structured data type: timing_distribution time_unit: microsecond bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1717631 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1717631#c4 notification_emails: - sfink@mozilla.com expires: never javascript.ion: compile_time: type: timing_distribution time_unit: microsecond description: > Time in microseconds of an Ion compilation. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1918166 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1918166 notification_emails: - dpalmeiro@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never javascript.gc: total_time: type: timing_distribution time_unit: millisecond description: > The total time taken by a major collection. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419#c8 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never minor_time: type: timing_distribution time_unit: microsecond description: > The time taked by a minor (nursery) collection. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419#c17 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never prepare_time: type: timing_distribution time_unit: millisecond description: > The time spent in the preparation phase. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419#c17 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never mark_roots_time: type: timing_distribution time_unit: microsecond description: > The time spent marking GC roots. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419#c17 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never mark_time: type: timing_distribution time_unit: millisecond description: > The time spent in the mark phase. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419#c17 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never sweep_time: type: timing_distribution time_unit: millisecond description: > The time spent in the sweep phase. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419#c17 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never compact_time: type: timing_distribution time_unit: millisecond description: > The time spent in the compact phase. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419#c17 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never slice_time: type: timing_distribution time_unit: millisecond description: > The time spent running a GC slice. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1636419#c17 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never budget: type: timing_distribution time_unit: millisecond description: > Requested GC slice budget. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never budget_overrun: type: timing_distribution time_unit: microsecond description: > How long a GC slice ran over its budget. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never animation: type: timing_distribution time_unit: millisecond description: > Time spent running JS GC when animating. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never max_pause: type: timing_distribution time_unit: millisecond description: > Longest GC slice in a GC. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never mark_gray: type: timing_distribution time_unit: millisecond description: > Time spent marking gray GC objects. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never mark_weak: type: timing_distribution time_unit: millisecond description: > Time spent marking GC objects held live through weakmaps. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never time_between: type: timing_distribution time_unit: second description: > Time spent in between garbage collections for the main runtime. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never time_between_slices: type: timing_distribution time_unit: millisecond description: > Time spent in between garbage collections for the main runtime. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never task_start_delay: type: timing_distribution time_unit: microsecond description: > Delay between queuing a GC task and the task starting. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932957 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never nursery_bytes: type: memory_distribution memory_unit: byte description: > Size of the GC nursery in bytes. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never effectiveness: type: custom_distribution range_min: 0 range_max: 50000 bucket_count: 100 histogram_type: exponential unit: "MB/s" description: > GC effectiveness, the amount of memory freed divided by main-thread collection time (MB/s) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never zone_count: type: custom_distribution range_min: 0 range_max: 100 bucket_count: 20 histogram_type: exponential unit: "zones" description: > Total number of GC zones bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never zones_collected: type: custom_distribution range_min: 0 range_max: 100 bucket_count: 20 histogram_type: exponential unit: "zones" description: > Number of zones collected in a zone GC. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never pretenure_count: type: custom_distribution range_min: 0 range_max: 100 bucket_count: 20 histogram_type: exponential description: > How many allocation sites were selected for pretenuring by a minor GC bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never mark_rate: type: custom_distribution range_min: 1000 range_max: 300000 bucket_count: 50 histogram_type: exponential unit: "objects/ms" description: > The number of objects marked per ms during GC. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never slice_count: type: custom_distribution range_min: 0 range_max: 200 bucket_count: 50 histogram_type: exponential unit: "objects/ms" description: > The number of slices in an incremental GC for the main runtime. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never parallel_mark_speedup: type: custom_distribution range_min: 50 range_max: 800 bucket_count: 50 histogram_type: exponential description: > Ratio of total helper thread time spent marking to main thread time for parallel marking, scale bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never parallel_mark_interruptions: type: custom_distribution range_min: 1 range_max: 500 bucket_count: 50 histogram_type: exponential description: > Number of interruptions/donations per slice during parallel marking. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never parallel_mark_utilization: type: custom_distribution range_min: 1 range_max: 100 bucket_count: 50 histogram_type: linear unit: "percentage" description: > Ratio of helper thread time spent marking to total helper thread time for parallel marking. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never mmu_50: type: custom_distribution range_min: 0 range_max: 100 bucket_count: 20 histogram_type: linear unit: "percentage" description: > Minimum percentage of time spent outside GC over any 50ms window. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never nursery_promotion_rate: type: custom_distribution range_min: 0 range_max: 100 bucket_count: 50 histogram_type: linear unit: "percentage" description: > The percentage of nursery objects that were promoted to the tenured heap. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never tenured_survival_rate: type: custom_distribution range_min: 0 range_max: 100 bucket_count: 50 histogram_type: linear unit: "percentage" description: > The percentage of tenured GC things that survived a collection. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never is_zone_gc: type: labeled_counter description: > Is it a zone GC? bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never labels: - "false" - "true" budget_was_increased: type: labeled_counter description: > Whether the budget was increased due to taking too long or approaching the incremental limit bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never labels: - "false" - "true" slice_was_long: type: labeled_counter description: > Whether a GC slice took 1.5 times or 5ms more than its budget bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never labels: - "false" - "true" reset: type: labeled_counter description: > Was an incremental GC canceled? bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never labels: - "false" - "true" non_incremental: type: labeled_counter description: > Was the GC non-incremental? bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never labels: - "false" - "true" parallel_mark_used: type: labeled_counter description: > Whether parallel marking was used for this collection bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never labels: - "false" - "true" reason: type: labeled_counter description: > Reason (enum value) for initiating a GC bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never labels: &gc_reasons - API - EAGER_ALLOC_TRIGGER - DESTROY_RUNTIME - ROOTS_REMOVED - LAST_DITCH - TOO_MUCH_MALLOC - ALLOC_TRIGGER - DEBUG_GC - COMPARTMENT_REVIVED - RESET - OUT_OF_NURSERY - EVICT_NURSERY - SHARED_MEMORY_LIMIT - EAGER_NURSERY_COLLECTION - BG_TASK_FINISHED - ABORT_GC - FULL_WHOLE_CELL_BUFFER - FULL_GENERIC_BUFFER - FULL_VALUE_BUFFER - FULL_CELL_PTR_OBJ_BUFFER - FULL_SLOT_BUFFER - FULL_SHAPE_BUFFER - TOO_MUCH_WASM_MEMORY - DISABLE_GENERATIONAL_GC - FINISH_GC - PREPARE_FOR_TRACING - FULL_WASM_ANYREF_BUFFER - FULL_CELL_PTR_STR_BUFFER - TOO_MUCH_JIT_CODE - FULL_CELL_PTR_BIGINT_BUFFER - NURSERY_TRAILERS - NURSERY_MALLOC_BUFFERS - DOM_WINDOW_UTILS - COMPONENT_UTILS - MEM_PRESSURE - CC_FINISHED - CC_FORCED - LOAD_END - UNUSED3 - PAGE_HIDE - NSJSCONTEXT_DESTROY - WORKER_SHUTDOWN - SET_DOC_SHELL - DOM_UTILS - DOM_IPC - DOM_WORKER - INTER_SLICE_GC - UNUSED1 - FULL_GC_TIMER - SHUTDOWN_CC - UNUSED2 - USER_INACTIVE - XPCONNECT_SHUTDOWN - DOCSHELL - HTML_PARSER - DOM_TESTUTILS - PREPARE_FOR_PAGELOAD slow_phase: type: labeled_counter description: > The longest phase in any slice that goes over 2x the budget. The phase values are defined in js/sr bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never labels: &gc_phases - MUTATOR - GC_BEGIN - MARK_CCWS - MARK_STACK - MARK_RUNTIME_DATA - MARK_EMBEDDING - MARK_ROOTS - EVICT_NURSERY_FOR_MAJOR_GC - WAIT_BACKGROUND_THREAD - UNMARK - UNMARK_WEAKMAPS - MARK_DISCARD_CODE - RELAZIFY_FUNCTIONS - PURGE - PURGE_PROP_MAP_TABLES - PURGE_SOURCE_URLS - JOIN_PARALLEL_TASKS - PREPARE - MARK_DELAYED - MARK_GRAY_WEAK - MARK_WEAK - MARK_INCOMING_GRAY - MARK_GRAY - PARALLEL_MARK_MARK - PARALLEL_MARK_WAIT - PARALLEL_MARK_OTHER - PARALLEL_MARK - MARK - WEAK_ZONES_CALLBACK - WEAK_COMPARTMENT_CALLBACK - FINALIZE_START - UPDATE_ATOMS_BITMAP - SWEEP_ATOMS_TABLE - SWEEP_DISCARD_CODE - SWEEP_INNER_VIEWS - SWEEP_CC_WRAPPER - SWEEP_BASE_SHAPE - SWEEP_INITIAL_SHAPE - SWEEP_REGEXP - SWEEP_COMPRESSION - SWEEP_WEAKMAPS - SWEEP_UNIQUEIDS - SWEEP_WEAK_POINTERS - SWEEP_FINALIZATION_OBSERVERS - SWEEP_JIT_DATA - SWEEP_WEAK_CACHES - SWEEP_MISC - SWEEP_COMPARTMENTS - FINALIZE_OBJECT - FINALIZE_NON_OBJECT - SWEEP_PROP_MAP - FINALIZE_END - DESTROY - FIND_DEAD_COMPARTMENTS - SWEEP - COMPACT_MOVE - COMPACT_UPDATE_CELLS - COMPACT_UPDATE - COMPACT - DECOMMIT - GC_END - MINOR_GC - EVICT_NURSERY - TRACE_HEAP slow_task: type: labeled_counter description: > The longest parallel task in any slice that goes over 2x the budget. The phase values are defined bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never labels: *gc_phases reset_reason: type: labeled_counter description: > Reason for cancelling an ongoing GC (see js::GCAbortReason) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never labels: &gc_abort_reasons - None - NonIncrementalRequested - AbortRequested - Unused1 - IncrementalDisabled - ModeChange - MallocBytesTrigger - GCBytesTrigger - ZoneChange - CompartmentRevived - GrayRootBufferingFailed - JitCodeBytesTrigger non_incremental_reason: type: labeled_counter description: > Reason for performing a non-incremental GC (see js::GCAbortReason) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never labels: *gc_abort_reasons minor_reason: type: labeled_counter description: > Reason (enum value) for initiating a minor GC bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never labels: *gc_reasons minor_reason_long: type: labeled_counter description: > Reason (enum value) that caused a long (>1ms) minor GC bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1932686 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - jcoppeard@mozilla.com expires: never labels: *gc_reasons slow_script_warning: shown_browser: type: event description: > Recorded when a slow script hang is resolved. This event was generated to correspond to the Legacy Telemetry event slow_script_warning.shown#browser. bugs: &slow_script_warning_shown_bugs - https://bugzil.la/1652613 - https://bugzil.la/1667245 - https://bugzil.la/1672572 data_reviews: &slow_script_warning_shown_data_reviews - https://bugzil.la/1652613 - https://bugzil.la/1667245 - https://bugzil.la/1672572 notification_emails: &slow_script_warning_shown_emails - dothayer@mozilla.com - esmyth@mozilla.com - gkruitbosch@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never extra_keys: hang_duration: description: > How long we believe the hang continued (ms). type: string uri_type: description: > The kind of script URL that hung. type: string telemetry_mirror: Slow_script_warning_Shown_Browser shown_content: type: event description: > Recorded when a slow script hang is resolved. This event was generated to correspond to the Legacy Telemetry event slow_script_warning.shown#content. bugs: *slow_script_warning_shown_bugs data_reviews: *slow_script_warning_shown_data_reviews notification_emails: *slow_script_warning_shown_emails expires: never extra_keys: end_reason: description: > Why the warning was hidden (user action, the process becoming responsive again, the browser qu type: string wait_count: description: > How many times the user elected to wait. type: quantity hang_duration: description: > How long we believe the hang continued (ms). type: string n_tab_deselect: description: > How many times the user switched away from a tab affected by this hang. type: quantity uri_type: description: > The kind of script URL that hung. type: string uptime: description: > How long the notification was up (ms). type: string telemetry_mirror: Slow_script_warning_Shown_Content no_lint: - COMMON_PREFIX script.preloader: mainthread_recompile: type: counter description: > How many times we ended up recompiling a script from the script preloader on the main thread. This metric was generated to correspond to the Legacy Telemetry scalar script.preloader.mainthread_recompile. bugs: - https://bugzil.la/1364235 - https://bugzil.la/1590385 - https://bugzil.la/1623098 - https://bugzil.la/1649954 - https://bugzil.la/1689257 - https://bugzil.la/1754639 data_reviews: - https://bugzil.la/1364235 - https://bugzil.la/1590385 - https://bugzil.la/1623098 - https://bugzil.la/1649954 - https://bugzil.la/1689257 - https://bugzil.la/1754639 notification_emails: - dothayer@mozilla.com - plawless@mozilla.com expires: never telemetry_mirror: SCRIPT_PRELOADER_MAINTHREAD_RECOMPILE [ Dauer der Verarbeitung: 0.20 Sekunden (vorverarbeitet) ] |
2026-04-04