On Tuesday 22 April 2003 11:35, Michael B Allen wrote:
Hi Michael,
> Ok, I searched a little using the Googler at indiana.edu's archives but
> nothing jumped up and bit me. I'm not too excited about applying a patch
Then you are not able to search archives.
http://marc.theaimsgroup.com/?l=linux-kernel&m=105092498721316&w=2
http://marc.theaimsgroup.com/?l=linux-kernel&m=105060066815681&w=2
http://marc.theaimsgroup.com/?l=linux-kernel&m=103835185429978&w=2
The 3rd url has a config option. Same attached w/o config option.
> snarfed out of an e-mail anywat. I'm surprised no one else has not
> complained about this enough to the point where you guys don't have a
> canned answer with a link. Is this problem not considered important?
there were some complaints. Anyway, if it's important or not depends on the
point of view. For me, it is _mega_ important, for mainline 2.4, I don't
think it is important ;)
> Does anyone know which RH patch in the 2.4.18-10 RPM adds this elevator
> throughput "improvement"? What identifiers would such a patch have in it?
Look for a patch that adds "2.4.19-pre*".
> PS: Why are there only "hacks"? Is this not considered important?
Well, the attached one is really a hack. It drops throughput ~20-30 % but gets
rid of all the annyoing pauses/stops while disk i/o. The 2 other approaches
are no real hacks though they also drop throughput.
You can also try "elvtune -r 0 -w 8192 /dev/bla" and see if it makes any
difference if you don't want to patch anything.
ciao, Marc
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This archive was generated by hypermail 2b29 : Wed Apr 23 2003 - 22:00:32 EST