Messages in this thread | | | From | Heinz Mauelshagen <> | Subject | Re: arca-vm-26 | Date | Thu, 21 Jan 1999 2:17:28 MET |
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> > On Wed, 20 Jan 1999, Andrea Arcangeli wrote: > > > I've put out an arca-vm-26. The differences between arca-vm-25 and -26 are > > I've released now arca-vm-27. I would like to know if you see > some difference between arca-vm-26 and -27. The main difference is that I > removed again the swapout smart code (that I inserted at PG_dirty time > trying to decrease the stalls caused by the swap code that was running > too much). >
Sorry, it's not well performing.
mke2fs of a 12G device: - buffermem is 200M of my 256M system afterwards - minimum swap. - lots of system time searching the buffer cache with commands afterwards. - commands running 50 to 100!!! times slower than before filling buffercache - Bad interactive behaviour under X with jumping pointer and slow character input when searching buffer cache
Once again: please think about the limitation of buffercache we had before with /proc/sys/vm/buffermem! If i hack an artivicial 10% limit for the buffercache, i _don't_ get that bad performance.
Heinz --
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Systemmanagement Entwicklungsbereich 2 Deutsche Telekom AG Entwicklungszentrum Darmstadt Heinz Mauelshagen Otto-Roehm-Strasse 71c Postfach 10 05 41 mge@ez-darmstadt.telekom.de 64205 Darmstadt Germany +49 6151 886-425 FAX-386 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
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