From: Rik van Riel <riel@redhat.com>
To: Benjamin Herrenschmidt <benh@au1.ibm.com>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org,
paulus@samba.org, Mel Gorman <mgorman@suse.de>
Subject: Re: [PATCH -V2 3/5] mm: Move change_prot_numa outside CONFIG_ARCH_USES_NUMA_PROT_NONE
Date: Thu, 05 Dec 2013 12:52:46 -0500 [thread overview]
Message-ID: <52A0BD6E.4090401@redhat.com> (raw)
In-Reply-To: <1386220835.21910.21.camel@pasglop>
On 12/05/2013 12:20 AM, Benjamin Herrenschmidt wrote:
> On Thu, 2013-12-05 at 10:48 +0530, Aneesh Kumar K.V wrote:
>>
>> Ok, I can move the changes below #ifdef CONFIG_NUMA_BALANCING ? We call
>> change_prot_numa from task_numa_work and queue_pages_range(). The later
>> may be an issue. So doing the below will help ?
>>
>> -#ifdef CONFIG_ARCH_USES_NUMA_PROT_NONE
>> +#ifdef CONFIG_NUMA_BALANCING
>
> I will defer to Mel and Rik (should we also CC Andrea ?)
It looks like manual numa binding can also use lazy
page migration, but I am not sure if that can happen
without CONFIG_NUMA_BALANCING, or if mbind always uses
MPOL_MF_STRICT...
WARNING: multiple messages have this Message-ID (diff)
From: Rik van Riel <riel@redhat.com>
To: Benjamin Herrenschmidt <benh@au1.ibm.com>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>,
paulus@samba.org, linux-mm@kvack.org,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH -V2 3/5] mm: Move change_prot_numa outside CONFIG_ARCH_USES_NUMA_PROT_NONE
Date: Thu, 05 Dec 2013 12:52:46 -0500 [thread overview]
Message-ID: <52A0BD6E.4090401@redhat.com> (raw)
In-Reply-To: <1386220835.21910.21.camel@pasglop>
On 12/05/2013 12:20 AM, Benjamin Herrenschmidt wrote:
> On Thu, 2013-12-05 at 10:48 +0530, Aneesh Kumar K.V wrote:
>>
>> Ok, I can move the changes below #ifdef CONFIG_NUMA_BALANCING ? We call
>> change_prot_numa from task_numa_work and queue_pages_range(). The later
>> may be an issue. So doing the below will help ?
>>
>> -#ifdef CONFIG_ARCH_USES_NUMA_PROT_NONE
>> +#ifdef CONFIG_NUMA_BALANCING
>
> I will defer to Mel and Rik (should we also CC Andrea ?)
It looks like manual numa binding can also use lazy
page migration, but I am not sure if that can happen
without CONFIG_NUMA_BALANCING, or if mbind always uses
MPOL_MF_STRICT...
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next prev parent reply other threads:[~2013-12-05 17:53 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-18 9:28 [PATCH -V2 0/5] powerpc: mm: Numa faults support for ppc64 Aneesh Kumar K.V
2013-11-18 9:28 ` Aneesh Kumar K.V
2013-11-18 9:28 ` [PATCH -V2 1/5] powerpc: Use HPTE constants when updating hpte bits Aneesh Kumar K.V
2013-11-18 9:28 ` Aneesh Kumar K.V
2013-11-20 4:35 ` Paul Mackerras
2013-11-20 4:35 ` Paul Mackerras
2013-11-18 9:28 ` [PATCH -V2 2/5] powerpc: Free up _PAGE_COHERENCE for numa fault use later Aneesh Kumar K.V
2013-11-18 9:28 ` Aneesh Kumar K.V
2013-11-20 4:35 ` Paul Mackerras
2013-11-20 4:35 ` Paul Mackerras
2013-11-18 9:28 ` [PATCH -V2 3/5] mm: Move change_prot_numa outside CONFIG_ARCH_USES_NUMA_PROT_NONE Aneesh Kumar K.V
2013-11-18 9:28 ` Aneesh Kumar K.V
2013-12-04 3:13 ` Benjamin Herrenschmidt
2013-12-04 3:13 ` Benjamin Herrenschmidt
2013-12-05 5:18 ` Aneesh Kumar K.V
2013-12-05 5:18 ` Aneesh Kumar K.V
2013-12-05 5:20 ` Benjamin Herrenschmidt
2013-12-05 5:20 ` Benjamin Herrenschmidt
2013-12-05 17:52 ` Rik van Riel [this message]
2013-12-05 17:52 ` Rik van Riel
2013-12-05 17:27 ` Rik van Riel
2013-12-05 17:27 ` Rik van Riel
2013-12-05 21:00 ` Benjamin Herrenschmidt
2013-12-05 21:00 ` Benjamin Herrenschmidt
2013-11-18 9:28 ` [PATCH -V2 4/5] powerpc: mm: Only check for _PAGE_PRESENT in set_pte/pmd functions Aneesh Kumar K.V
2013-11-18 9:28 ` Aneesh Kumar K.V
2013-11-20 4:36 ` Paul Mackerras
2013-11-20 4:36 ` Paul Mackerras
2013-11-18 9:28 ` [PATCH -V2 5/5] powerpc: mm: book3s: Enable _PAGE_NUMA for book3s Aneesh Kumar K.V
2013-11-18 9:28 ` Aneesh Kumar K.V
2013-11-20 4:37 ` Paul Mackerras
2013-11-20 4:37 ` Paul Mackerras
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