alexmt@chromium.org chrome-ads-histograms@google.com Counts of various UI and user action events related to the SubresourceFilter. This will be triggered when portions of the UI are shown or interacted with. alexmt@chromium.org chrome-ads-histograms@google.com Whenever a document load is committed in any frame and subresource filtering should be activated, records whether the filtering rules are available. Warning: This metric expired after M77 (around 09/2019) and was unexpired in 07/2023. Data may be missing. alexmt@chromium.org chrome-ads-histograms@google.com Records the total time a child frame navigation was delayed while calculating whether it should be disallowed or not. Logged for all navigations that were allowed. This metric uses UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES to acccount for clients with low-resolution clocks. alexmt@chromium.org chrome-ads-histograms@google.com Records the total time a child frame navigation was delayed while calculating whether it should be disallowed or not. Logged for all navigations with the disallowed load policy. This metric uses UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES to acccount for clients with low-resolution clocks. alexmt@chromium.org chrome-ads-histograms@google.com Records the total time a child frame navigation was delayed while calculating whether it should be disallowed or not. Logged for all navigations with the would_disallow load policy. This metric uses UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES to acccount for clients with low-resolution clocks. jkarlin@chromium.org chrome-ads-histograms@google.com The total CPU time it took to parse and index all rules. Does not include time when the indexing thread was not doing actual work, e.g. waiting for I/O or being descheduled. Recorded every time the RulesetService kicks off a ruleset indexing process. Warning: This metric expired around 02/2020 and was unexpired 07/2023. Data may be missing. jkarlin@chromium.org chrome-ads-histograms@google.com The number of rules that could be not be successfully indexed and therefore have been ignored. Recorded every time the RulesetService kicks off a ruleset indexing process and it reaches the point where rules are getting indexed. This is logged when a new ruleset is indexed for the first time on Chrome start. Warning: This metric expired after M90 (around 05/2021) and was unexpired 09/2021. It expired again 09/2022 and was unexpired 07/2023. Data may be missing. alexmt@chromium.org chrome-ads-histograms@google.com The result of the IndexRulesetMatcher Verify method. Either pass if both the checksum and verifier succeeded, or a value indicating which combination of them failed. Note that a zero checksum indicates that the checksum has not yet been stored during indexing (for rulesets indexed prior to the checksumming code). This is logged when the indexed ruleset is loaded on Chrome start. alexmt@chromium.org chrome-ads-histograms@google.com The total time it took to verify the indexed ruleset in the browser process. Logged every time verification occurs, which usually occurs when the first page with activation is navigated to. This is logged when the indexed ruleset is loaded on Chrome start. jkarlin@chromium.org chrome-ads-histograms@google.com The total time it took to read and index all rules. Includes I/O time for reading the unindexed rules, but not for writing the indexed ruleset. Recorded every time the RulesetService kicks off a ruleset indexing process. Warning: Data is incomplete. This histogram expired in 08/2023 and was unexpired in 12/2023. alexmt@chromium.org jkarlin@chromium.org Whenever a document load is committed in the root frame, records whether the filtering rules are available. This is independent of whether or not subresource filtering should be activated. jkarlin@chromium.org chrome-ads-histograms@google.com Records the policy decision to activate subresource filtering for a page load. 'Activated' indicates that subresource filtering was activated. All other reasons indicate that subresource filtering was not activated. Warning: This metric expired around 08/2021 and was unexpired 07/2023. Data may be missing. alexmt@chromium.org chrome-ads-histograms@google.com The ActivationList or NONE that the root frame's navigation matched with. Recorded at WillProcessResponse time for an outermost main frame navigation. alexmt@chromium.org chrome-ads-histograms@google.com Whenever a navigation finishes in a root frame, records whether subresource filtering should be activated for that load. alexmt@chromium.org chrome-ads-histograms@google.com Whenever a navigation finishes in a root frame that inherits from its same-origin opener, records whether subresource filtering should be activated for that load. yaoxia@chromium.org chrome-ads-histograms@google.com Whenever a navigation finishes in a root frame, and when subresource filtering should be disabled for that load, record the disabled reason. yaoxia@google.com chrome-ads-histograms@google.com Records that an ads violation has been triggered on a page load. Logged at the time the ads violation is detected. Warning: This metric expired after M90 (around 05/2021) and was unexpired 07/2023. Data may be missing. jkarlin@chromium.org chrome-ads-histograms@google.com Whenever a page load is finished with subresource filtering activated, records the total number of subresource loads that have been disallowed. This only differs from `MatchedRules` when filtering is performed in dry-run mode. Warning: This metric expired around 08/2021 and was unexpired 07/2023. Data may be missing. jkarlin@chromium.org chrome-ads-histograms@google.com Whenever a page load is finished with subresource filtering activated, records the total number of subresource loads that have been evaluated. This only differs from 'Total' when some of subdocuments is subject to a deactivating rule with DOCUMENT activation type. jkarlin@chromium.org chrome-ads-histograms@google.com Whenever a page load is finished with subresource filtering activated, records the total number of subresource loads that have matched filtering rules. This only differs from `Disallowed` when filtering is performed in dry-run mode. jkarlin@chromium.org chrome-ads-histograms@google.com Whenever a page load is finished with subresource filtering activated, records the total number of subresource loads that have gone through the subresource filtering pipeline. alexmt@chromium.org chrome-ads-histograms@google.com The navigation delay imposed by the subresource filter on a given navigation due to Safe Browsing checks. This metric expired after M83 and was renewed in M88, so it has incomplete data between M84 and M87 inclusively. alexmt@chromium.org chrome-ads-histograms@google.com Whenever a page load is finished with subresource filtering activated, records the total thread CPU time spent on evaluating subresource requests, aggregated across all frames. Note: this histogram is emitted for all clients, both ones which have high-resolution timer available and those which don't. Warning: This metric expired after 01/2020 and was unexpired 07/2021. Data may be missing. alexmt@chromium.org chrome-ads-histograms@google.com Whenever a page load is finished with subresource filtering activated, records the total real time spent on evaluating subresource requests, aggregated across all frames. This includes the time spent on waiting or being descheduled. Note: this histogram is emitted for all clients, both ones which have high-resolution timer available and those which don't. Warning: This metric expired after M78 and was unexpired 07/2021. Data may be missing. alexmt@chromium.org chrome-ads-histograms@google.com The time an individual Safe Browsing URL check took before finishing, including posting tasks to and from the IO thread. Measured on the UI thread on navigation. This metric expired after M83 and was renewed in M88, so it has incomplete data between M84 and M87 inclusively. alexmt@chromium.org chrome-ads-histograms@google.com Whenever a subresource of a document is evaluated against the ruleset, records the thread CPU time spent on calculating whether it should be allowed to load. Warning: This metric may include reports from clients with low-resolution clocks (i.e. on Windows, ref. |TimeTicks::IsHighResolution()|). Such reports will cause this metric to have an abnormal distribution. When considering revising this histogram, see UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES for the solution. Warning: This metric expired after 01/2020 and was unexpired 07/2021. Data may be missing. alexmt@chromium.org chrome-ads-histograms@google.com Whenever a subresource of a document is evaluated against the ruleset, records how much time was spent on calculating whether it should be allowed to load. Warning: This metric may include reports from clients with low-resolution clocks (i.e. on Windows, ref. |TimeTicks::IsHighResolution()|). Such reports will cause this metric to have an abnormal distribution. When considering revising this histogram, see UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES for the solution. Warning: This metric expired after M85 and was unexpired 07/2021. Data may be missing alexmt@chromium.org csharrison@chromium.org chrome-ads-histograms@google.com Whenever a subresource of a document is evaluated against the ruleset, records how much time was spent on calculating whether it should be allowed to load. This is only recorded on the first run of the ruleset service in a particular process. Warning: This metric may include reports from clients with low-resolution clocks (i.e. on Windows, ref. |TimeTicks::IsHighResolution()|). Such reports will cause this metric to have an abnormal distribution. When considering revising this histogram, see UMA_HISTOGRAM_CUSTOM_MICROSECONDS_TIMES for the solution. csharrison@chromium.org engedy@chromium.org Recorded at most once per process (renderer or browser) when the UrlPatternIndex hash table or empty slot is unexpectedly null or empty at match time, despite passing validation at construction. This indicates that the underlying flatbuffer index data was likely corrupted after loading (e.g. due to mmap corruption). Always emitted as true. csharrison@chromium.org engedy@chromium.org Recorded at most once per process (renderer or browser) when a hash table probe in UrlPatternIndex exhausts all slots without finding a match or empty slot, indicating that the underlying flatbuffer index data is likely corrupted. Always emitted as true. alexmt@chromium.org chrome-ads-histograms@google.com Whether indexing a version of the ruleset and writing it to disk succeeded, or failed at a particular step. Recorded every time the RulesetService kicks off a ruleset indexing process. Warning: Data is incomplete. This metric expired in 08/2023 and was unexpired in 12/2023.