On Sunday 01 December 2002 22:25, you wrote:
Hi Rik,
> That was my gut feeling as well, but I guess it's a good thing
> to quantify how much of a difference it makes. I wonder if we
> could convince Con to test a kernel both with and without this
> patch and look at the difference.
yep, would be a good idea. Con: *wake up ;)*
> > So, here my patch proposal. Ontop of 2.4.20-rmap15a.
> Looks good, now lets test it. If the patch is as needed as you
> say we should push it to marcelo ;)
yep, Andrew should do it. Anyway, all those patches do _not_ get rid of those
I/O pauses/stops since 2.4.19-pre6. Andrea did a good approach with his
lowlatency elevator, even if it drops throughput (needs more testing to
become equivalent to throughput w/o it) and also Con and me did a Mini
Lowlatency Elevator + Config option, so you can decide weather you are
building for serverusage where interactive "desktop performance" is not
needed ;) or not.
I wish I'll have the time to eleminate the broken code which went into 2.4.19
that causes those I/O stops.
*Repetition: those stopps do not occur with 2.4.18* ;)
ciao, Marc
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