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2 definitions found
 for wall time
From The Jargon File (version 4.4.7, 29 Dec 2003) :

  wall time
   n.
  
      (also wall clock time)
  
      1. ?Real world? time (what the clock on the wall shows), as opposed to the
      system clock's idea of time.
  
      2. The real running time of a program, as opposed to the number of ticks
      required to execute it (on a timesharing system these always differ, as no
      one program gets all the ticks, and on multiprocessor systems with good
      thread support one may get more processor time than real time).
  

From The Free On-line Dictionary of Computing (30 December 2018) :

  wall time
  
     (Or "wall clock time") 1. "Real world" time (what the clock on
     the wall shows), as opposed to the system clock's idea of
     time.
  
     2. The real running time of a program, as opposed to the
     number of ticks required to execute it (on a time-sharing
     system these always differ, as no one program gets all the
     ticks, and on multiprocessor systems with good thread support
     one may get more processor time than real time).
  
     [{Jargon File]
  

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