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OptimizedTimeToFirstDrawMetric

A metric that measures optimized time to first draw durations for app launches.

Declaration

struct OptimizedTimeToFirstDrawMetric

Discussion

This metric corresponds to the MetricResult.optimizedTimeToFirstDraw(_:) case. It appears only in intervalEntries and is not included in state entries.

Optimized time to first draw reflects the actual user-perceived launch time when the system applies prefetching optimizations. The system may start the app in the background before the user taps its icon, so this metric can be shorter than TimeToFirstDrawMetric.

This type replaces the histogrammedOptimizedTimeToFirstDraw property of MXAppLaunchMetric.

Topics

Measurements

See Also

Launch and responsiveness metrics