> I did not any "benchmarks", but I upgraded our smp-box
> from 2.0.36 to 2.2.5-ac7 and it seems to be much faster.
Cool. I'm not doubting that there are nice things in 2.2.x
that aren't in 2.0.36.
> I think to compare both kernel versions by doing a gzip
> does not give you much information of the systems
> behaviour under heavy load (much users).
There are (at least) two definitions of a heavy load: one
user trying to get something done and many users trying to
get lots of things done; the former applies to me.
2.2.5 is demonstrably worse than 2.0.36 at parallelizing
two-element pipes ("cmd1 | cmd2"). I think these are fairly
common and worth worrying about. My examples with gzip and
bzip2 were nothing more than simple illustrations of this
deficiency.
Regards,
Alan
--
Dr Alan Watson
Instituto de Astronom�a UNAM
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