Messages in this thread | | | Date | Sat, 26 Jan 2013 14:57:29 +1100 | From | paul.szabo@sydney ... | Subject | Re: [PATCH] Negative (setpoint-dirty) in bdi_position_ratio() |
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Dear Fengguang (et al),
> There are 260MB reclaimable slab pages in the normal zone, however we > somehow failed to reclaim them. ...
Could the problem be that without CONFIG_NUMA, zone_reclaim_mode stays at zero and anyway zone_reclaim() does nothing in include/linux/swap.h ?
Though... there is no CONFIG_NUMA nor /proc/sys/vm/zone_reclaim_mode in the Ubuntu non-PAE "plain" HIGHMEM4G kernel, and still it handles the "sleep test" just fine.
Where does reclaiming happen (or meant to happen)?
Thanks, Paul
Paul Szabo psz@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/ School of Mathematics and Statistics University of Sydney Australia
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