[Swift-devel] progress stats lying

[Mihael Hategan]

On Tue, 2009-04-28 at 13:05 -0500, Glen Hocky wrote:
> as a user, it seems very important to have accurate summary stats so you 
> can tell if anything is going wrong.

You're overgeneralizing. You can infer some things from the summary
stats, but many things can go wrong even though the summary stats are
right.

> 
> Mihael Hategan wrote:
> > On Tue, 2009-04-28 at 07:15 +0000, Ben Clifford wrote:
> >   
> >> On Tue, 28 Apr 2009, Ben Clifford wrote:
> >>
> >>     
> >>>> A possible solution is to add another state ("Checking status" or
> >>>> something), that is triggered in Execute by a task completed event.
> >>>>         
> >> r2887 adds a checking status event in execute2, right after the 
> >> vdl:execute call. I think that is sufficient? or are you claiming that 
> >> something deeper in the execute layer is delaying things?
> >>     
> >
> > It's probably better but not sufficient. With many threads there may be
> > delays between the vdl:execute call completing and the next thing
> > running may be visible.
> >
> > The problem is that swift may say that more jobs are active than known
> > possible, which will raise eyebrows.
> >
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> >   
>