FrameTimingSummarizer class Null safety

This class and summarizes a list of FrameTiming for the performance metrics.

Constructors

FrameTimingSummarizer(List<FrameTiming> data, {int? newGenGCCount, int? oldGenGCCount})
Summarize data to frame build time and frame rasterizer time statistics.
factory

Properties

averageFrameBuildTime → Duration
The average value of frameBuildTime in milliseconds.
final
averageFrameRasterizerTime → Duration
The average value of frameRasterizerTime in milliseconds.
final
averageLayerCacheBytes → double
The average number of bytes consumed by cached layers across all frames.
final
averageLayerCacheCount → double
The average number of layers cached across all frames.
final
averagePictureCacheBytes → double
The average number of bytes consumed by cached pictures across all frames.
final
averagePictureCacheCount → double
The average number of pictures cached across all frames.
final
averageVsyncOverhead → Duration
The average value of vsyncOverhead;
final
frameBuildTime → List<Duration>
List of frame build time in microseconds
final
frameRasterizerTime → List<Duration>
List of frame rasterizer time in microseconds
final
hashCode → int
The hash code for this object.
read-only, inherited
missedFrameBuildBudget → int
Number of items in frameBuildTime that's greater than kBuildBudget
final
missedFrameRasterizerBudget → int
Number of items in frameRasterizerTime that's greater than kBuildBudget
final
newGenGCCount → int
The number of new generation GCs.
final
oldGenGCCount → int
The number of old generation GCs.
final
p90FrameBuildTime → Duration
The 90-th percentile value of frameBuildTime in milliseconds
final
p90FrameRasterizerTime → Duration
The 90-th percentile value of frameRasterizerTime in milliseconds.
final
p90LayerCacheBytes → int
The 90-th percentile number of bytes consumed by cached layers across all frames.
final
p90LayerCacheCount → int
The 90-th percentile number of layers cached across all frames.
final
p90PictureCacheBytes → int
The 90-th percentile number of bytes consumed by cached pictures across all frames.
final
p90PictureCacheCount → int
The 90-th percentile number of pictures cached across all frames.
final
p90VsyncOverhead → Duration
The 90-th percentile value of vsyncOverhead in milliseconds
final
p99FrameBuildTime → Duration
The 99-th percentile value of frameBuildTime in milliseconds
final
p99FrameRasterizerTime → Duration
The 99-th percentile value of frameRasterizerTime in milliseconds.
final
p99LayerCacheBytes → int
The 90-th percentile number of bytes consumed by cached layers across all frames.
final
p99LayerCacheCount → int
The 90-th percentile number of layers cached across all frames.
final
p99PictureCacheBytes → int
The 90-th percentile number of bytes consumed by cached pictures across all frames.
final
p99PictureCacheCount → int
The 90-th percentile number of pictures cached across all frames.
final
p99VsyncOverhead → Duration
The 99-th percentile value of vsyncOverhead in milliseconds
final
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited
summary → Map<String, dynamic>
Convert the summary result to a json object.
read-only
vsyncOverhead → List<Duration>
List of the time difference between vsync signal and frame building start time
final
worstFrameBuildTime → Duration
The largest value of frameBuildTime in milliseconds
final
worstFrameRasterizerTime → Duration
The largest value of frameRasterizerTime in milliseconds.
final
worstLayerCacheBytes → int
The highest number of bytes consumed by cached layers across all frames.
final
worstLayerCacheCount → int
The most number of layers cached across all frames.
final
worstPictureCacheBytes → int
The highest number of bytes consumed by cached pictures across all frames.
final
worstPictureCacheCount → int
The most number of pictures cached across all frames.
final
worstVsyncOverhead → Duration
The largest value of vsyncOverhead in milliseconds.
final

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited