Diff for "CpuTime" - Dr. A Wiki

Differences between revisions 1 and 3 (spanning 2 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

See p26 Computer Architecture by Hennessy and Paterson

See p58 Compute organization

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-  ⇤ ← Revision 1 as of 2004-01-25 17:05:04 → 
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  Editor: yakko
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+   ← Revision 3 as of 2004-02-17 22:36:58 → ⇥
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-Deletions 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!
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+{{{
CPU         + CPU      = ElapsedTime + I/O Time
   System        user
}}}
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+See p58 Compute organization