title: Does any one know the 'top' command 's result's meaning in android?
body: <p>I have found the result of 'top' is different from result of in standard linux.I have searched on the web a little bit but I can not find my answer.
  For example, following is the partial result of top in my android:</p>
  
  <pre><code>  PID CPU% S  #THR     VSS     RSS PCY UID      Name
    814   2% R     1    940K    372K  fg root     top
    110   1% S    58 185000K  59216K  fg system   system_server
     31   0% S     1      0K      0K  fg root     vsync_workqueue
     49   0% S     1      0K      0K  fg root     file-storage
     52   0% S     1      0K      0K  fg root     gp2a_wq
    178   0% S     9  98476K  23820K  fg system   com.android.systemui
  </code></pre>
  
  <p>So #THR probably is the number of threads.But what is 'PCY'? I can not find this information in the /proc/(PID)/  folder. And I have found that if I open an youtube, the PCY will be fg. Then if I quit it(youtube), the youtube process still exists but the PCY will be bg. 
  And in terms of 'S', I have found all processes are always 'S' which means sleeping, even my youtube app is currently active. It's weired...</p>
  
  <p>Does anyone have any clue:> Thx</p>