Re: Help understanding slow down

[Roger Luethi]

On Mon, 24 May 2004 08:33:49 +0200, Paul Rolland wrote:
> Hello, 
> 
> > 2.6.7-p1:
> > 24.86user 51.77system 2:58.87elapsed 42%CPU
> > (0avgtext+0avgdata 0maxresident)k
> > 0inputs+0outputs (13major+7591686minor)pagefaults
> > 0swaps
> > 
> > 2.4.21:
> > 28.68user 34.98system 1:12.34elapsed 87%CPU
> > (0avgtext+0avgdata 0maxresident)k
> > 0inputs+0outputs (5691267major+1130523minor)pagefaults
> > 0swaps
> > 
> > 
> > Both runs on the same machine with the same process
> > (making headers).
> > 
> > Could someone give me some pointers/directions on
> > where to look.
> 
> Any reason why there is such a difference in the pagefaults
> numbers between 2.4.x and 2.6.x ????
> Could it explain a part of the time differences ?

Probably no. Last time I checked, the major fault field for rusage
contained bogus data (included minor faults as well). Looks like that
got fixed in 2.6.

Roger
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/