Messages in this thread | | | From | Marc-Christian Petersen <> | Subject | Re: [PATCH] 2.4.20-rmap15a | Date | Sun, 1 Dec 2002 22:41:04 +0100 |
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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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