From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
To: David Rientjes <rientjes@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Mike Kravetz <mike.kravetz@oracle.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [patch v2 -mm] mm, hugetlb: schedule when potentially allocating many hugepages
Date: Thu, 6 Jul 2017 11:38:02 +0530 [thread overview]
Message-ID: <3ceb6744-025d-86b9-4a71-beca86efa9e6@linux.vnet.ibm.com> (raw)
In-Reply-To: <alpine.DEB.2.10.1706091535300.66176@chino.kir.corp.google.com>
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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prev parent reply other threads:[~2017-07-06 6:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-08 4:03 [patch " David Rientjes
2017-06-08 4:31 ` Mike Kravetz
2017-06-09 22:35 ` David Rientjes
2017-06-09 22:36 ` [patch v2 " David Rientjes
2017-06-09 22:43 ` Mike Kravetz
2017-07-06 6:08 ` Anshuman Khandual [this message]
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