THPDFLoadedPagePrefetchInfo

Reports progress and cooperative cancellation telemetry for the most recently scheduled loaded-page raster prefetch

Fields

RequestedPageCount is the number of valid pages accepted from the parsed request
StartedPageCount counts pages whose cache inspection or render work began
CompletedPageCount counts pages completed by either a cache hit or a newly published render
CacheHitPageCount counts pages already present in the raster cache
RenderedPageCount counts newly rendered pages published to the raster cache
FailedPageCount counts page failures other than cooperative cancellation
CancellationRequestCount counts cancellation requests received while the worker was active
ForegroundPreemptionCount counts active workers cancelled by a foreground page render
LastCancellationLatencyMilliseconds is the most recent elapsed time from cancellation request until the worker joined
PeakCancellationLatencyMilliseconds is the highest cancellation latency observed for the current request
Active reports that work is still in progress
Cancelled reports that the request ended through explicit cancellation or foreground preemption