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TracingConfig

public class TracingConfig

Holds tracing configuration information and predefined settings for TracingController. This class is functionally equivalent to android.webkit.TracingConfig.

Summary

Nested types

Builder used to create TracingConfig objects.

Constants
static final int

Predefined set of categories, includes all categories enabled by default in chromium.
static final int

Predefined set of categories typically useful for analyzing WebViews.
static final int

Predefined set of categories for studying difficult rendering performance problems.
static final int

Predefined set of categories for analyzing input latency issues.
static final int

Predefined set of categories for analyzing javascript and rendering issues.
static final int

Indicates that there are no predefined categories.
static final int

Predefined set of categories for analyzing rendering issues.
static final int

Predefined set of categories typically useful for web developers.
static final int

Record trace events continuously using an internal ring buffer.
static final int

Record trace events until the internal tracing buffer is full.

Public methods
@NonNull List<String>

Returns the list of included custom category patterns for this configuration.
int

Returns a bitmask of the predefined category sets of this configuration.
int

Returns the tracing mode of this configuration.

Constants

CATEGORIES_ALL

public static final int CATEGORIES_ALL = 1

Predefined set of categories, includes all categories enabled by default in chromium. Use with caution: this setting may produce large trace output.

CATEGORIES_ANDROID_WEBVIEW

public static final int CATEGORIES_ANDROID_WEBVIEW = 2

Predefined set of categories typically useful for analyzing WebViews. Typically includes "android_webview" and "Java" categories.

CATEGORIES_FRAME_VIEWER

public static final int CATEGORIES_FRAME_VIEWER = 64

Predefined set of categories for studying difficult rendering performance problems. Typically includes "blink", "compositor", "gpu", "renderer.scheduler", "v8" and some other compositor categories which are disabled by default.

CATEGORIES_INPUT_LATENCY

public static final int CATEGORIES_INPUT_LATENCY = 8

Predefined set of categories for analyzing input latency issues. Typically includes "input", "renderer.scheduler" categories..

CATEGORIES_JAVASCRIPT_AND_RENDERING

public static final int CATEGORIES_JAVASCRIPT_AND_RENDERING = 32

Predefined set of categories for analyzing javascript and rendering issues. Typically includes "blink", "compositor", "gpu", "renderer.scheduler" and "v8" categories.

CATEGORIES_NONE

public static final int CATEGORIES_NONE = 0

Indicates that there are no predefined categories.

CATEGORIES_RENDERING

public static final int CATEGORIES_RENDERING = 16

Predefined set of categories for analyzing rendering issues. Typically includes "blink", "compositor" and "gpu" categories.

CATEGORIES_WEB_DEVELOPER

public static final int CATEGORIES_WEB_DEVELOPER = 4

Predefined set of categories typically useful for web developers. Typically includes "blink", "compositor", "renderer.scheduler" and "v8" categories.

RECORD_CONTINUOUSLY

public static final int RECORD_CONTINUOUSLY = 1

Record trace events continuously using an internal ring buffer. Default tracing mode. Overwrites old events if they exceed buffer capacity. Uses less memory than the RECORD_UNTIL_FULL mode. Depending on the implementation typically allows up to 64k events to be stored.

RECORD_UNTIL_FULL

public static final int RECORD_UNTIL_FULL = 0

Record trace events until the internal tracing buffer is full. Typically the buffer memory usage is larger than RECORD_CONTINUOUSLY. Depending on the implementation typically allows up to 256k events to be stored.

Public methods

getCustomIncludedCategories

public @NonNull List<String> getCustomIncludedCategories()

Returns the list of included custom category patterns for this configuration.

Returns
@NonNull List<String>

Empty list if no custom category patterns are specified.

getPredefinedCategories

public int getPredefinedCategories()

Returns a bitmask of the predefined category sets of this configuration.

Returns
int

Bitmask of predefined category sets.

getTracingMode

public int getTracingMode()

Returns the tracing mode of this configuration.

Returns
int

The tracing mode of this configuration.