Hi again On Tue, 1 Sep 2009 03:32:00 +0200, Holger Parplies <wb...@parplies.de> wrote: > > wrong, the ls -l doesnt need to move to the files inode to do > > anything, the directory have all the necessary info. > sorry, but that is just not true. 'ls -l' needs to do a stat() to
Oops, you are right... i was thinking on the plain ls, the -l
option will fetch alot more info
> more disk activity than on a 'normal' directory. Sorting the stat()
> calls by inode number would help, but I doubt 'ls' is optimized for
> such an unusual usage case (but I haven't checked, so I might be wrong).
that is the job of the SCSI (and not SATA) command queuing,
reorder the requests to optimize the head seeks... that is
also why IDE suck so much
But anyway, if someone is working under RAM pressure or
IO pressure, you have no cache, and without cache, all
HDs/OS/filesystems will take a HUGE performance hit
cya
higuita
--
Naturally the common people don't want war... but after all it is the
leaders of a country who determine the policy, and it is always a
simple matter to drag the people along, whether it is a democracy, or
a fascist dictatorship, or a parliament, or a communist dictatorship.
Voice or no voice, the people can always be brought to the bidding of
the leaders. That is easy. All you have to do is tell them they are
being attacked, and denounce the pacifists for lack of patriotism and
exposing the country to danger. It works the same in every country.
-- Hermann Goering, Nazi and war criminal, 1883-1946
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