From: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
To: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: Christoph Lameter <clameter@sgi.com>,
wli@holomorphy.com, melgor@ie.ibm.com, akpm@linux-foundation.org,
linux-mm@kvack.org, agl@us.ibm.com, pj@sgi.com
Subject: Re: [RFC][PATCH 4/5] hugetlb: fix cpuset-constrained pool resizing
Date: Wed, 08 Aug 2007 09:26:38 -0400 [thread overview]
Message-ID: <1186579598.5055.11.camel@localhost> (raw)
In-Reply-To: <20070808015042.GF15714@us.ibm.com>
On Tue, 2007-08-07 at 18:50 -0700, Nishanth Aravamudan wrote:
<snip>
> Finally, after my hugetlb interleave dequeue patch is applied:
>
> /cpuset ~
> Trying to resize the pool to 200 from the top cpuset
> Node 3 HugePages_Free: 50
> Node 2 HugePages_Free: 50
> Node 1 HugePages_Free: 50
> Node 0 HugePages_Free: 50
> Done. 200 free
> Trying to resize the pool back to 100 from the top cpuset
> Node 3 HugePages_Free: 25
> Node 2 HugePages_Free: 25
> Node 1 HugePages_Free: 25
> Node 0 HugePages_Free: 25
> Done. 100 free
> /cpuset/set1 /cpuset ~
> Trying to resize the pool to 200 from a cpuset restricted to node 1
> Node 3 HugePages_Free: 50
> Node 2 HugePages_Free: 50
> Node 1 HugePages_Free: 50
> Node 0 HugePages_Free: 50
> Done. 200 free
> Trying to shrink the pool down to 0 from a cpuset restricted to node 1
> Node 3 HugePages_Free: 0
> Node 2 HugePages_Free: 0
> Node 1 HugePages_Free: 0
> Node 0 HugePages_Free: 0
> Done. 0 free
That's the behavior I'd like to see!!!
>
> So, it would appear that, in your opinion, this set of patches
> constitutes a pseudo-bug-fix? Without the last patch, it seems, cpusets
> are able to constrain what nodes a root process can remove hugepages
> from.
>
> Thanks,
> Nish
>
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next prev parent reply other threads:[~2007-08-08 13:26 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-06 16:32 [RFC][PATCH 0/5] hugetlb NUMA improvements Nishanth Aravamudan
2007-08-06 16:37 ` [RFC][PATCH 1/5] Fix hugetlb pool allocation with empty nodes V9 Nishanth Aravamudan
2007-08-06 16:38 ` [RFC][PATCH 2/5] hugetlb: numafy several functions Nishanth Aravamudan
2007-08-06 16:40 ` [RFC][PATCH 3/5] hugetlb: add per-node nr_hugepages sysfs attribute Nishanth Aravamudan
2007-08-06 16:44 ` [RFC][PATCH 4/5] hugetlb: fix cpuset-constrained pool resizing Nishanth Aravamudan
2007-08-06 16:45 ` Nishanth Aravamudan
2007-08-06 16:48 ` [RFC][PATCH 5/5] hugetlb: interleave dequeueing of huge pages Nishanth Aravamudan
2007-08-06 18:04 ` [RFC][PATCH 4/5] hugetlb: fix cpuset-constrained pool resizing Christoph Lameter
2007-08-06 18:26 ` Nishanth Aravamudan
2007-08-06 18:41 ` Christoph Lameter
2007-08-07 0:03 ` Nishanth Aravamudan
2007-08-06 19:37 ` Lee Schermerhorn
2007-08-08 1:50 ` Nishanth Aravamudan
2007-08-08 13:26 ` Lee Schermerhorn [this message]
2007-08-06 17:59 ` [RFC][PATCH 2/5] hugetlb: numafy several functions Christoph Lameter
2007-08-06 18:15 ` Nishanth Aravamudan
2007-08-07 0:34 ` Nishanth Aravamudan
2007-08-06 18:00 ` [RFC][PATCH 1/5] Fix hugetlb pool allocation with empty nodes V9 Christoph Lameter
2007-08-06 18:19 ` Nishanth Aravamudan
2007-08-06 18:37 ` Christoph Lameter
2007-08-06 19:52 ` Lee Schermerhorn
2007-08-06 20:15 ` Christoph Lameter
2007-08-07 0:04 ` Nishanth Aravamudan
2007-08-06 16:39 ` [RFC][PATCH 0/5] hugetlb NUMA improvements Nishanth Aravamudan
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