Please list the metric's owners. Add more owner tags as needed. Time it takes to do high-quality image resampling for images that are resized. Non-resized images and ones our heuristic decides can be done "badly" are not counted. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each image processed by the image annotation service, records whether or not results for the image already existed in the client-side cache. A hit means that image data was not transmitted to the image annotation server. Warning: This histogram was expired from 2022-04-24 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each request made by a client feature to the image annotation service, reports the final status of the service response. Warning: This histogram was expired from 2022-10-30 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each failed request made by a client feature to the image annotation service, reports the reason for the failure. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each annotation backend run by the image annotation server, records the gRPC status reported. Warning: This histogram was expired from 2022-04-24 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each image sent from a client feature to the image annotation service, reports the image's final size (in kilobytes) after resizing and reencoding. Warning: This histogram was expired from 2022-04-24 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each annotation backend run by the image annotation server, records whether or not the backend is recognised by this version of Chrome. Warning: This histogram was expired from 2022-04-24 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each image request sent to the image annotation server, records whether or not the description backend is included among the requested backends. The description backend will not be included when the image is known to violate the description model policy (i.e. be too small or have too-high an aspect ratio). Warning: This histogram was expired from M105 to M117; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each image request sent to the image annotation server, records whether or not the icon backend is included among the requested backends. The icon backend will not be included when the image is known to violate the icon model policy (i.e. be too large or have too-high an aspect ratio). Warning: This histogram was expired from M105 to M117; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each non-empty response sent from the image annotation server, records whether or not JSON data were successfully parsed from the response body. Warning: This histogram was expired from 2022-10-31 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each pixel fetch request sent from the image annotation service to a client feature, records whether or not encoded pixel data were successfully returned to the service. Warning: This histogram was expired from 2022-04-24 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each HTTP response from the image annotation server, reports the associated HTTP code. Warning: This histogram was expired from 2022-04-24 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each HTTP response from the image annotation server, reports the time elapsed (in milliseconds) since the corresponding request was sent. Warning: This histogram was expired from 2022-04-24 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each HTTP request sent to the image annotation server, reports the net error (or OK status) of the request. Warning: This histogram was expired from 2022-04-24 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each HTTP request sent to the image annotation server, reports the size of the request. Measured in kilobytes, since a request can contain the pixel data of multiple images. Warning: This histogram was expired from 2022-04-24 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each HTTP response from the image annotation server, reports the response size in bytes. Warning: This histogram was expired from 2022-04-24 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each image sent from a client feature to the image annotation service, reports the image's original (i.e. pre-scaling) area in pixels. Images with pixel count above a certain threshold will be resized prior to transmission. Warning: This histogram was expired from 2022-04-24 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each annotation of the given type returned by the image annotation server, records the confidence (as a percentage) produced by the ML model for the annotation. {ImageAnnotationServiceAnnotationType} Warning: This histogram was expired from 2022-04-24 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each annotation of the given type returned by the image annotation server, records whether or not the text of the annotation was empty. This is sometimes valid, e.g. for text extraction (OCR) on an image that does not contain any text. {ImageAnnotationServiceAnnotationType} Warning: This histogram was expired from 2022-04-24 to 2023-06-23; data may be missing. Use data from M117+ only. dtseng@chromium.org amoylan@chromium.org mschillaci@google.com chrome-a11y-core@google.com For each annotation backend run by the image annotation server, records the gRPC status reported. {ImageAnnotationServiceAnnotationType} Warning: This histogram was expired from 2022-04-24 to 2023-06-23; data may be missing. Use data from M117+ only. lukasza@chromium.org chrome-rust-experiments@google.com Measures the runtime of the `gfx::PNGCodec::Decode(..., SkBitmap* bitmap)` API. Logged every time the API is called. Primarily used to evaluate the go/rusty-png-ui-gfx-decoder project. The metric is reported for only clients with high-resolution clocks (i.e. excludes a small percentage of Windows users population - see the Windows.HasHighResolutionTimeTicks metric). This is okay, because we are mostly interested in comparing C++ vs Rust and it seems okay to assume that such comparison would give similar results for the filtered and non-filtered population. lukasza@chromium.org chrome-rust-experiments@google.com Measures the runtime of the `gfx::PNGCodec::Decode(..., std::vector<unsigned char>* output, ...)` API. Logged every time the API is called. Primarily used to evaluate the go/rusty-png-ui-gfx-decoder project. The metric is reported for only clients with high-resolution clocks (i.e. excludes a small percentage of Windows users population - see the Windows.HasHighResolutionTimeTicks metric). This is okay, because we are mostly interested in comparing C++ vs Rust and it seems okay to assume that such comparison would give similar results for the filtered and non-filtered population. fgorski@chromium.org wylieb@chromium.org The total number of metadata entries in the image fetcher cache metadata database for a given cache strategy. Recorded during cache eviction process. {ImageFetcherCacheStrategy} fgorski@chromium.org wylieb@chromium.org The total size of the cache for a given cache strategy. Recorded during cache eviction process. {ImageFetcherCacheStrategy} fgorski@chromium.org wylieb@chromium.org Events that track the lifecycle and performance of the cached_image_fetcher. The events reported include: success/failure conditions, various recoverable errors and a couple of dead-end errors. {ImageFetcherClients} fgorski@chromium.org wylieb@chromium.org The time it takes for cached_image_fetcher to load an image from the cache in Java. {ImageFetcherClients} fgorski@chromium.org wylieb@chromium.org The time it takes for cached_image_fetcher to load an image from the cache in native. {ImageFetcherClients} fgorski@chromium.org wylieb@chromium.org The time it takes for cached_image_fetcher to load an image from native code. Only recorded on successful loads. {ImageFetcherClients} fgorski@chromium.org wylieb@chromium.org The time it takes for cached_image_fetcher to load an image from the network after a cache hit. {ImageFetcherClients} fgorski@chromium.org wylieb@chromium.org The time it takes for cached_image_fetcher to load an image from the network. {ImageFetcherClients} fgorski@chromium.org wylieb@chromium.org The time it takes to load an image's metadata from the metadata store. fgorski@chromium.org wylieb@chromium.org Android: The integer status code of network requests made by the image data fetcher. This code includes both protocol(1xx-5xx) and non-protocol(-xxx) errors. Recorded when a request completes. {ImageFetcherClients} fgorski@chromium.org wylieb@chromium.org The time since the last LRU eviction from the image cache. Recorded when two LRU evictions occur within closure proximity to one another. Will be used to determine if LRU eviction is happening too frequently. tapted@chromium.org src/ui/file_manager/OWNERS For each image load request that requested caching, records whether or not it was found in the client-side cache. A hit means the request was not forwarded to the ImageLoader extension. tapted@chromium.org src/ui/file_manager/OWNERS Returns the percentage of the client-side cache that is used for loading images, before they are sent to the ImageLoader extension. Expressed as a percentage of ImageLoaderClient.CACHE_MEMORY_LIMIT (e.g. 20MB). tapted@chromium.org src/ui/file_manager/OWNERS For each image load request records whether or not it requested caching.