TimespanLogging Types

MultiEventLog

Processes events immediately, generating multiple log streams. Multiple consumers may register themselves in the MultiEventLog, and when accessed, log events will be provided to all consumers. A consumer is simply a function or callable struct which will be called with an event when it's generated. The return value of the consumer will be pushed into a log stream dedicated to that consumer. Errors thrown by consumers will be caught and rendered, but will not otherwise interrupt consumption by other consumers, or future consumption cycles. An error will result in nothing being appended to that consumer's log.

LocalEventLog

Stores events in a process-local array. Accessing the logs is all-or-nothing; if multiple consumers call get_logs!, they will get different sets of logs.

NoOpLog

Disables event logging entirely.

CoreMetrics

Tracks the timestamp, category, and kind of the Event object generated by log events.

IDMetrics

Tracks the ID of Event objects generated by log events.

TimelineMetrics

Tracks the timeline of Event objects generated by log events.

FullMetrics

Tracks the full Event object generated by log events.

CPULoadAverages

Monitors the CPU load averages.

MemoryFree

Monitors the percentage of free system memory.

EventSaturation

Tracks the compute saturation (running tasks) per-processor.

Debugging metric, used to log event start/finish via @debug.

LogWindow

Aggregator that prunes events to within a given time window.