Starting March 27, 2025, we recommend using android-latest-release instead of aosp-main to build and contribute to AOSP. For more information, see Changes to AOSP.
         
       
     
  
  
  
  
  
    
    
      
    
    
      
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TraceCmdCollector
  public
  
  
  
  class
  TraceCmdCollector
  
  
  
  
  
  
  
    extends AtraceCollector
  
  
  
  
  
  
  
    
  A IMetricCollector that collects traces during the test using trace-cmd, and logs them to
 the invocation.
 
This trace collector allows for USB disconnection during the test (as in power testing).
 
The system default tool, atrace, is used in tandem with this collector to set the
 android-specific sysfs flags.
 
A trace-cmd (https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git) binary
 compatible with Android must be specified.
 
This will upload the trace.dat format (see man 5 trace-cmd.dat) produced by trace-cmd.
Summary
Public constructors
    TraceCmdCollector
    
public TraceCmdCollector ()
    
    
    
  
 
Protected methods
    startTracing
    
protected void startTracing (ITestDevice device)
    
    
    
  
    
    | Parameters | 
|---|
      
        | device | ITestDevice | 
    
      
  
 
    stopTracing
    
protected void stopTracing (ITestDevice device)
    
    
    
  
    
    | Parameters | 
|---|
      
        | device | ITestDevice | 
    
      
  
 
 
 
  
  
 
  
    
    
      
    
    
  
       
    
    
  
  
  Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
  Last updated 2023-03-08 UTC.
  
  
  
    
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