Starting hal daemon incredibly decrease my hard drive performance

[Alexis Muller]

Hi,

On Thu, 2004-11-04 at 19:48 +0100, Sjoerd Simons wrote:
> On Thu, Nov 04, 2004 at 01:31:28PM -0500, David Zeuthen wrote:
[...]
> > Wait a second - the only thing we know is that polling for media change
> > makes the numbers from hdparm lower - I'm not sure at all that
> > performance is degraded; someone should check with other benchmarks
> > and/or real-world tests.
> 
> I asked him that (as i don't really trust hdparm) and according to him
> realworld performance also degraded.

Yes i confirm realworld performance are also degraded.

> He's in the CC, so i guess he should be able to give some numbers :)

Numbers ? Well, perhaps :

joshua download # time cp -r /usr/portage/distfiles/ /tmp/

real    0m15.742s
user    0m0.004s
sys     0m0.349s

joshua download # hal-set-property
--udi /org/freedesktop/Hal/devices/block_3_64 --key
storage.media_check_enabled --bool false

joshua download # time cp -r /usr/portage/distfiles/ /tmp/ 
real    0m0.294s
user    0m0.005s
sys     0m0.281s

Convincing ? This difference appear by copying many files but not for a
single (big or not) file.
 

PS : sorry for my long delay replay, my internet home connection is
broken :-(

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