TracingConfig
public
class
TracingConfig
extends Object
Holds tracing configuration information and predefined settings.
Summary
Nested classes | |
|---|---|
class |
TracingConfig.Builder
Builder used to create |
Constants | |
|---|---|
int |
CATEGORIES_ALL
Predefined set of categories, includes all categories enabled by default in chromium. |
int |
CATEGORIES_ANDROID_WEBVIEW
Predefined set of categories typically useful for analyzing WebViews. |
int |
CATEGORIES_FRAME_VIEWER
Predefined set of categories for studying difficult rendering performance problems. |
int |
CATEGORIES_INPUT_LATENCY
Predefined set of categories for analyzing input latency issues. |
int |
CATEGORIES_JAVASCRIPT_AND_RENDERING
Predefined set of categories for analyzing javascript and rendering issues. |
int |
CATEGORIES_NONE
Indicates that there are no predefined categories. |
int |
CATEGORIES_RENDERING
Predefined set of categories for analyzing rendering issues. |
int |
CATEGORIES_WEB_DEVELOPER
Predefined set of categories typically useful for web developers. |
int |
RECORD_CONTINUOUSLY
Record trace events continuously using an internal ring buffer. |
int |
RECORD_UNTIL_FULL
Record trace events until the internal tracing buffer is full. |
Public methods | |
|---|---|
List<String>
|
getCustomIncludedCategories()
Returns the list of included custom category patterns for this configuration. |
int
|
getPredefinedCategories()
Returns a bitmask of the predefined category sets of this configuration. |
int
|
getTracingMode()
Returns the tracing mode of this configuration. |
Inherited methods | |
|---|---|
Constants
CATEGORIES_ALL
public static final int CATEGORIES_ALL
Predefined set of categories, includes all categories enabled by default in chromium. Use with caution: this setting may produce large trace output.
Constant Value: 1 (0x00000001)
CATEGORIES_ANDROID_WEBVIEW
public static final int CATEGORIES_ANDROID_WEBVIEW
Predefined set of categories typically useful for analyzing WebViews. Typically includes "android_webview" and "Java" categories.
Constant Value: 2 (0x00000002)
CATEGORIES_FRAME_VIEWER
public static final int CATEGORIES_FRAME_VIEWER
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.
Constant Value: 64 (0x00000040)
CATEGORIES_INPUT_LATENCY
public static final int CATEGORIES_INPUT_LATENCY
Predefined set of categories for analyzing input latency issues. Typically includes "input", "renderer.scheduler" categories.
Constant Value: 8 (0x00000008)
CATEGORIES_JAVASCRIPT_AND_RENDERING
public static final int CATEGORIES_JAVASCRIPT_AND_RENDERING
Predefined set of categories for analyzing javascript and rendering issues. Typically includes "blink", "compositor", "gpu", "renderer.scheduler" and "v8" categories.
Constant Value: 32 (0x00000020)
CATEGORIES_NONE
public static final int CATEGORIES_NONE
Indicates that there are no predefined categories.
Constant Value: 0 (0x00000000)
CATEGORIES_RENDERING
public static final int CATEGORIES_RENDERING
Predefined set of categories for analyzing rendering issues. Typically includes "blink", "compositor" and "gpu" categories.
Constant Value: 16 (0x00000010)
CATEGORIES_WEB_DEVELOPER
public static final int CATEGORIES_WEB_DEVELOPER
Predefined set of categories typically useful for web developers. Typically includes "blink", "compositor", "renderer.scheduler" and "v8" categories.
Constant Value: 4 (0x00000004)
RECORD_CONTINUOUSLY
public static final int RECORD_CONTINUOUSLY
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.
Constant Value: 1 (0x00000001)
RECORD_UNTIL_FULL
public static final int RECORD_UNTIL_FULL
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.
Constant Value: 0 (0x00000000)
Public methods
getCustomIncludedCategories
public List<String> getCustomIncludedCategories ()
Returns the list of included custom category patterns for this configuration.
| Returns | |
|---|---|
List<String> |
Empty list if no custom category patterns are specified.
This value cannot be null. |
getPredefinedCategories
public int getPredefinedCategories ()
Returns a bitmask of the predefined category sets of this configuration.
| Returns | |
|---|---|
int |
Bitmask of predefined category sets.
Value is either 0 or a combination of the following:
|
getTracingMode
public int getTracingMode ()
Returns the tracing mode of this configuration.
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Last updated 2026-02-13 UTC.