Messages in this thread | | | Date | Tue, 17 Dec 2013 16:07:35 +0100 | From | Zlatko Calusic <> | Subject | Re: [RFC PATCH 0/7] Configurable fair allocation zone policy v2r6 |
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On 13.12.2013 15:10, Mel Gorman wrote: > Kicked this another bit today. It's still a bit half-baked but it restores > the historical performance and leaves the door open at the end for playing > nice with distributing file pages between nodes. Finishing this series > depends on whether we are going to make the remote node behaviour of the > fair zone allocation policy configurable or redefine MPOL_LOCAL. I'm in > favour of the configurable option because the default can be redefined and > tested while giving users a "compat" mode if we discover the new default > behaviour sucks for some workload. >
I'll start a 5-day test of this patchset in a few hours, unless you can send an updated one in the meantime. I intend to test it on a rather boring 4GB x86_64 machine that before Johannes' work had lots of trouble balancing zones. Would you recommend to use the default settings, i.e. don't mess with tunables at this point?
Regards, -- Zlatko
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