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SubjectRe: something terribly rotten with scheduler? (UPDATE 2.3.10)
On Mon, Jul 12, 1999 at 10:28:01AM +0200, Marc Lehmann wrote:
> On Thu, Jul 08, 1999 at 02:47:04PM +0200, Marc Lehmann wrote:
> > - - linux 2.2.10 on an dual SMP intel machine (gcc-2.7.2.3, no patches)
>
> 2.3.10 seems to work fine under the same conditions, no locked processes etc.
> 2.2.10 still accumulates "stopped" running processes, however...
>
> Also, 2.3.10 is the first 2.3.x kernel that worked without oopsing and
> trashing my filesystem for some time: great work, thanks to all who made it
> work!!
>
> Some disturbing thing I noticed in both 2.2.10 and 2.3.10, however, is
> that the load average is at constant _3_, when only two processes are
> (seem to be) running. To my knowledge, the only thing these processes
> do is number crunching and reading/writing files occasionally, so there
> should be no hidden processes.
>
> If I stop the two processes, the load average drops to around zero, as
> expected. I'm not sure these problems are related, however the load
> average behaves "excpectedly" during compilation for example.
>

I reported such a strange behaviour with 2.2.5-15SMP / 2.2.10-ac4SMP
and one instance of povray consuming 100% on each CPU. I do not
think that povray is multithreaded, but I may be wrong.

> --
> -----==- |
> ----==-- _ |
> ---==---(_)__ __ ____ __ Marc Lehmann +--
> --==---/ / _ \/ // /\ \/ / pcg@goof.com |e|
> -=====/_/_//_/\_,_/ /_/\_\ XX11-RIPE --+
> The choice of a GNU generation |
> |

--
Thierry Danis
Poste : 53 53 danis@spmo.sagem.fr

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