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Groups > linux.kernel > #1682063
| From | Anshuman Khandual <khandual@linux.vnet.ibm.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [patch v2 -mm] mm, hugetlb: schedule when potentially allocating many hugepages |
| Date | 2017-07-06 08:10 +0200 |
| Message-ID | <u089d-Ad-7@gated-at.bofh.it> (permalink) |
| References | <tPWVI-7FJ-9@gated-at.bofh.it> <tPXoJ-7V3-5@gated-at.bofh.it> <tQAJr-7ia-5@gated-at.bofh.it> <tQAJr-7ia-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 06/10/2017 04:06 AM, David Rientjes wrote: > A few hugetlb allocators loop while calling the page allocator and can > potentially prevent rescheduling if the page allocator slowpath is not > utilized. > > Conditionally schedule when large numbers of hugepages can be allocated. > > Signed-off-by: David Rientjes <rientjes@google.com> Fixes a task which was getting hung while writing like 10000 hugepages (16MB on POWER8) into /proc/sys/vm/nr_hugepages. Tested-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
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Re: [patch v2 -mm] mm, hugetlb: schedule when potentially allocating many hugepages Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2017-07-06 08:10 +0200
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