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Groups > linux.kernel > #1172466
| From | Nathan Zimmer <nzimmer@sgi.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] mm: meminit: Finish initialisation of struct pages before basic setup |
| Date | 2015-06-25 23:40 +0200 |
| Message-ID | <pFn2i-42w-39@gated-at.bofh.it> (permalink) |
| References | <ppHRo-5xf-39@gated-at.bofh.it> <ppYfw-4TW-13@gated-at.bofh.it> <pF1Oa-6TC-15@gated-at.bofh.it> <pFmfU-2SE-9@gated-at.bofh.it> <pFmpA-33W-15@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, Jun 25, 2015 at 09:57:44PM +0100, Mel Gorman wrote: > 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. > Nope I haven't recorded any failures without it. I just get concerned when I see some scaling issues that something COULD go wrong. Nate -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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Re: [PATCH] mm: meminit: Finish initialisation of struct pages before basic setup Nathan Zimmer <nzimmer@sgi.com> - 2015-06-25 01:00 +0200 Re: [PATCH] mm: meminit: Finish initialisation of struct pages before basic setup Nathan Zimmer <nzimmer@sgi.com> - 2015-06-25 23:40 +0200 Re: [PATCH] mm: meminit: Finish initialisation of struct pages before basic setup Nathan Zimmer <nzimmer@sgi.com> - 2015-06-25 23:50 +0200
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