Messages in this thread | | | Date | Mon, 2 Dec 2002 08:56:05 +1100 | From | Con Kolivas <> | Subject | Re: [PATCH] 2.4.20-rmap15a |
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Quoting Marc-Christian Petersen <m.c.p@wolk-project.de>:
> 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 ;)*
Sorry sleep and work intervene ;)
I have already tested it in -ck and was planning to put it into 2.4.20-ck1 when I finished it. I'll test it in vanilla to show how it works. It made a thunderous difference to io load.
Con
> > > > 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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