arabm@google.com dullweber@chromium.org lamzin@google.com Records the underlying status code (error reason) when the initial client attestation request fails. This error is rewritten as kClientAttestationFailed on the main request status code metric, and this histogram tracks the original failure reason of the request. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the Private AI feature name for each request sent. Recorded for every request. arabm@google.com dullweber@chromium.org lamzin@google.com Records the latency of a request sent from the Private AI Client. This is the time from when the request is sent to when the response is received or the request times out. Recorded for every request. The suffix on the histogram name indicates the feature: {FeatureName} nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the latency of a request sent from the Private AI Client. This is the time from when the request is sent to when the response is received or the request times out. Recorded for every request. The suffix on the histogram name indicates the outcome: {Status} nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the size of the request payload sent from the Private AI Client. Recorded for every request. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the outcome of a Private AI request. Recorded for every request that expects a response. arabm@google.com dullweber@chromium.org lamzin@google.com Records the outcome of a Private AI request. Recorded for every request that expects a response. Suffix indicates the feature: {FeatureName} nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the size of the response payload received by the Private AI Client for successful requests. Recorded for every successful request. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the server-side errors that occur during the request lifecycle. Recorded for every failed request due to a server error. The error codes are based on the canonical Google RPC codes. See components/private_ai/proto/google_rpc_code.proto for the enum values. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the WebSocket close code when the connection is dropped. This helps diagnose connection issues. See RFC 6455, Section 7.4.1 for a list of defined status codes. Recorded every time the WebSocket channel is dropped. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the duration of a WebSocket connection starting from when the connection is established to when it is closed by the server. Recorded when the connection is closed by the server. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the stability of the {CallName} from SecureSessionAsyncImpl to the Oak Session service sandbox. True for success, false for failure. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the latency of HTTP requests made by the client to the Phosphor server. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the HTTP response code received from Phosphor server. 0 indicates a network error or no response. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records whether a requested auth token was served from the local cache (true) or required a fetch (false). nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the number of tokens successfully fetched in a batch by FeatureTokenManager. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the result of the GetAuthnTokens operation in TokenFetcher. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the latency of fetching the OAuth token required for BSA. arabm@google.com dullweber@chromium.org lamzin@google.com Records the latency of the whole connection establishment process for the secure channel. This measures the duration from when the secure channel starts its establishment process to when it is successfully established. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the latency of getting the attestation request. This may involve server requests to get a blinded token. The suffix indicates the outcome: {Status}. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the latency of getting the handshake message. The suffix indicates the outcome: {Status}. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the number of requests sent in a single secure channel session. Recorded when a session is closed. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the latency of sending the attestation request and receiving a response. This is the time from when the attestation request is sent to when the response is received and verified. The suffix indicates the outcome: {Status}. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the latency of sending the handshake request and receiving a response. This is the time from when the handshake request is sent to when the response is received and verified. The suffix indicates the outcome: {Status}. nikhiljakhar@google.com arabm@google.com dullweber@chromium.org lamzin@google.com saeideid@google.com Records the duration of a secure channel session. This is the time from when the session is established to when it is closed. Recorded when a session is closed.