Interesting analysis of linux kernel threading by IBM

[Davide Libenzi]

Hi Helge,

Friday, January 21, 2000 11:33 AM
Helge Hafting <helgehaf en idb.hist.no> wrote :
> >with a lot of tasks and a 15 % less with 2 tasks ( at the same amount of
> >switches / second )

sorry it was a my bad explanation, we are speaking about scheduling times.
The 15% loss is relative at the same switch / second.
The fact is that two tasks enviroments has a switch rate much lower then a
300 one,
so the 15% loss must be scaled with a factor (2 / 300) << K < M, where M
depend
on the nature of the tasks ( system call rate versus pure computing ).
I think it can be lower than 1%.

Cheers,
    Davide.

--
All this stuff is IMVHO




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