Diff for "CpuTime" - Dr. A's Wiki

Differences between revisions 1 and 5 (spanning 4 versions)

CPU time reconginzes the distinctuion between WallClockTime and the time the CPU is actually doing calculations. CPU time is computing, not including the time waiting for I/O or other running programs. We kjnow that ResponseTime <> CpuTime!

CPU time can be further divided into:

system time - Time spent doing OS work
user time - Time spent executing user program

CPU         + CPU      = ElapsedTime + I/O Time
   System        user

                     CPU clock cycles for a program
CPU Exceution Time = ------------------------------
                                Clock Rate

-  ⇤ ← Revision 1 as of 2004-01-25 17:05:04 → 
  Size: 488
  Editor: yakko
  Comment:
+   ← Revision 5 as of 2004-02-17 22:55:34 → ⇥
  Size: 786
  Editor: yakko
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-CPU time reconginzes the distinctuion between WallClockTime and the time the CPU is actually doing calculations. CPU time is computing, not including the time waiting for I/O or other running programs. We not that ResponseTime <> CpuTime!
+CPU time reconginzes the distinctuion between WallClockTime and the time the CPU is actually doing calculations. CPU time is computing, not including the time waiting for I/O or other running programs. We kjnow that ResponseTime <> CpuTime!
 Line 10:
-See p26 Computer Architecture by Hennessy and Paterson
+{{{
CPU         + CPU      = ElapsedTime + I/O Time
   System        user

                     CPU clock cycles for a program
CPU Exceution Time = ------------------------------
                                Clock Rate
}}} 

See also IoTime

   * See p26 Computer Architecture by Hennessy and Paterson
   * See p58 Compute organization