Package | flash.sampler |
Class | public class Sample |
Inheritance | Sample Object |
Subclasses | DeleteObjectSample, NewObjectSample |
Language Version: | ActionScript 3.0 |
Runtime Versions: | AIR 1.0 Flash Player 9.0.115.0 |
See also
Public Properties
Public Methods
Public Constants
Constant | Defined By | ||
---|---|---|---|
stack : Array
Contains information about the methods executed by Flash Player over a specified period of time. | Sample | ||
time : Number
The microseconds that define the duration of the Sample instance. | Sample |
Constant Detail
stack | Constant |
public const stack:Array
Language Version: | ActionScript 3.0 |
Runtime Versions: | AIR 1.0 Flash Player 9.0.115.0 |
Contains information about the methods executed by Flash Player over a specified period of time. The format for the stack trace is similiar to the content shown in the exception dialog box of the Flash Player debugger version. For Flash Player debugger version only.
time | Constant |
public const time:Number
Language Version: | ActionScript 3.0 |
Runtime Versions: | AIR 1.0 Flash Player 9.0.115.0 |
The microseconds that define the duration of the Sample instance. For Flash Player debugger version only.
Examples ( How to use this example )
SampleTypesExample.as
The following example uses the
stack
and time
properties of a Sample object
s
to collect memory samples. The samples contain NewObjectSample objects (the
newSamples
array), DeleteObjectSample objects (the delSamples
array), and CPU memory sample
objects (the cpuSamples
array). To use
the memory profiler, you need to have Flash Player debugger version 9.0.115.0 or later installed.
package { import flash.sampler.* import flash.system.* import flash.utils.* import flash.display.Sprite public class sampleTypes extends Sprite { var b:Boolean = true public function sampleTypes() { flash.sampler.startSampling(); for(var i:int=0;i<10000;i++) new Object(); var cpuSamples:Array=[]; var newSamples:Array=[]; var delSamples:Array=[]; var ids:Array=[] var lastTime:Number=0; for each(var s:Sample in getSamples()) { assert(s.time > 0); // positive assert(Math.floor(s.time) == s.time, s.time); // integral assert(s.time >= lastTime, s.time + ":" + lastTime); // ascending assert(s.stack == null || s.stack is Array) if(s.stack) { assert(s.stack[0] is StackFrame); assert(s.stack[0].name is String); } if(s is NewObjectSample) { var nos = NewObjectSample(s); assert(s.id > 0, s.id); assert(s.type is Class, getQualifiedClassName(s.type)); newSamples.push(s); ids[s.id] = "got one"; } else if(s is DeleteObjectSample) { var dos = DeleteObjectSample(s); delSamples.push(s); assert(ids[dos.id] == "got one"); } else if(s is Sample) cpuSamples.push(s); else { assert(false); } lastTime = s.time; } trace(b) trace(newSamples.length > 0) trace(cpuSamples.length > 0) trace(delSamples.length > 0) } private function assert(e:Boolean, mess:String=null):void { b = e && b; if(true && !e) { if(mess) trace(mess); trace(new Error().getStackTrace()); } } } }
Fri Mar 19 2010, 02:45 AM -07:00