Messages in this thread | | | Date | Tue, 23 Feb 2016 11:03:46 -0800 | From | Johannes Weiner <> | Subject | Re: [PATCH 06/27] mm, vmscan: Begin reclaiming pages on a per-node basis |
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On Tue, Feb 23, 2016 at 10:57:22AM -0800, Johannes Weiner wrote: > > @@ -2558,16 +2579,12 @@ static void shrink_zones(struct zonelist *zonelist, struct scan_control *sc) > > sc->gfp_mask |= __GFP_HIGHMEM; > > > > for_each_zone_zonelist_nodemask(zone, z, zonelist, > > - requested_highidx, sc->nodemask) { > > It's unfortunate that we start with the lowest zone here. For Normal > allocations, the most common allocations, this will always have two > full shrink_node() rounds that skip over everything >DMA in the first, > then over everything >DMA32 in the second, even though all pages on > the node are valid reclaim candidates for that allocation.
Nevermind, I'm confused about zonelist ordering. It starts with the highest indexed zones.
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