Messages in this thread | | | Date | Thu, 25 Jun 2015 21:57:44 +0100 | From | Mel Gorman <> | Subject | Re: [PATCH] mm: meminit: Finish initialisation of struct pages before basic setup |
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On Thu, Jun 25, 2015 at 09:48:55PM +0100, Mel Gorman wrote: > On Wed, Jun 24, 2015 at 05:50:28PM -0500, Nathan Zimmer wrote: > > My apologies for taking so long to get back to this. > > > > I think I did locate two potential sources of slowdown. > > One is the set_cpus_allowed_ptr as I have noted previously. > > However I only notice that on the very largest boxes. > > I did cobble together a patch that seems to help. > > > > If you are using kthread_create_on_node(), is it even necessary to call > set_cpus_allowed_ptr() at all? >
That aside, are you aware of any failure with this series as it currently stands in Andrew's tree that this patch is meant to address? It seems like a nice follow-on that would boot faster on very large machines but if it's addressing a regression then it's very important as the series cannot be merged with known critical failures.
-- Mel Gorman SUSE Labs
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