React Native CDP Status

Profiler Domain

Methods

Profiler.disable #

Profiler.enable #

Profiler.setSamplingInterval #

Changes CPU profiler sampling interval. Must be called before CPU profiles recording started.

Parameters

interval

integer

New sampling interval in microseconds.

Profiler.start #

Profiler.stop #

Return object

profile

Profile

Recorded profile.

Events

Profiler.consoleProfileFinished #

Parameters

id

string

location

Debugger.Location

Location of console.profileEnd().

profile

Profile

title
Optional

string

Profile title passed as an argument to console.profile().

Profiler.consoleProfileStarted #

Sent when new profile recodring is started using console.profile() call.

Parameters

id

string

location

Debugger.Location

Location of console.profile().

title
Optional

string

Profile title passed as an argument to console.profile().

Types

Profiler.Profile #

Profile.

Type: object

Properties

nodes

array[ ProfileNode ]

The list of profile nodes. First item is the root node.

startTime

number

Profiling start timestamp in microseconds.

endTime

number

Profiling end timestamp in microseconds.

samples
Optional

array[ integer ]

Ids of samples top nodes.

timeDeltas
Optional

array[ integer ]

Time intervals between adjacent samples in microseconds. The first delta is relative to the profile startTime.

Profiler.ProfileNode #

Profile node. Holds callsite information, execution statistics and child nodes.

Type: object

Properties

id

integer

Unique id of the node.

callFrame

Runtime.CallFrame

Function location.

hitCount
Optional

integer

Number of samples where this node was on top of the call stack.

Experimental

children
Optional

array[ integer ]

Child node ids.

deoptReason
Optional

string

The reason of being not optimized. The function may be deoptimized or marked as don't optimize.

positionTicks
Optional

array[ PositionTickInfo ]

An array of source position ticks.

Experimental