RE: smp cputime issues

From: Steinar Hauan (
Date: Wed Jan 02 2002 - 08:54:52 EST

On Tue, 1 Jan 2002, M. Edward Borasky wrote:
> The obvious question is: how do the printed *elapsed* (wall clock) times
> compare with a stopwatch timing of the same run??


  should have included that all timings are consistent.
  (usr/sys vs reported wall clock time vs external stop watch time)

  for reference: the effect arises for a several different memory types
  (pc133, pc133 ecc, pc133 reg ecc, pc2100) and the impact is similar.
  thus if it was only a memory bandwidth issue, i would expect
  the results to depend more on the memory/chipset in question.


  Steinar Hauan, dept of ChemE  --
  Carnegie Mellon University, Pittsburgh PA, USA

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