Re: which time is counted by TStopwatch or what is CINT actually

From: Valery Fine (fine@rsgi01.rhic.bnl.gov)
Date: Mon Jan 19 1998 - 20:01:41 MET 

On 20 Jan 98 at 0:23, Pasha Murat wrote:

> 
> 
>  Hello,
> 
> in the example below I'm interactively running 2 test routines which
> I consider to be exactly the same from the point of view of
> execution: the only difference between them consists in that one
> line which 
> *should never be executed* is uncommented in the second routine.
> 
> I'd also expect the execution times to be exactly the same.
> However ROOT TStopwatch timer reports *very* strange results: 
> the reported times differ by more than a factor of 100...
> 
> One could either suspect TStopwatch timer in reporting wrong time in
> one of 2 cases or CINT in doing much more than it has been asked to
> in case when `cout ...' is uncommented.
> 

  I did try this under Windows and got:

root [0] .x pasha1.C
RealTime=36.452000 seconds, CpuTime=35.641250 seconds
NULL
root [1] .x pasha2.C
RealTime=0.170000 seconds, CpuTime=0.170245 seconds
NULL
root [2]

  But I saw no evidence aganist of TStopwatch since a normal 
watch just provided the same time: 36 sec vs 0.17

   So I suspect it is CINT problem not TStopwatch.
 
  Valery
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