From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: linux-mm@kvack.org, kamezawa.hiroyu@jp.fujitsu.com,
dhillf@gmail.com, rientjes@google.com, mhocko@suse.cz,
akpm@linux-foundation.org, hannes@cmpxchg.org
Cc: linux-kernel@vger.kernel.org, cgroups@vger.kernel.org
Subject: [PATCH -V7 00/14] hugetlb: Add HugeTLB controller to control HugeTLB allocation
Date: Wed, 30 May 2012 20:08:45 +0530 [thread overview]
Message-ID: <1338388739-22919-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> (raw)
Hi,
This patchset implements a cgroup resource controller for HugeTLB
pages. The controller allows to limit the HugeTLB usage per control
group and enforces the controller limit during page fault. Since
HugeTLB doesn't support page reclaim, enforcing the limit at page
fault time implies that, the application will get SIGBUS signal if
it tries to access HugeTLB pages beyond its limit. This requires
the application to know beforehand how much HugeTLB pages it would
require for its use.
The goal is to control how many HugeTLB pages a group of task can
allocate. It can be looked at as an extension of the existing quota
interface which limits the number of HugeTLB pages per hugetlbfs
superblock. HPC job scheduler requires jobs to specify their resource
requirements in the job file. Once their requirements can be met,
job schedulers like (SLURM) will schedule the job. We need to make sure
that the jobs won't consume more resources than requested. If they do
we should either error out or kill the application.
Patches are on top of 731a7378b81c2f5fa88ca1ae20b83d548d5613dc
Changes from V6:
* Implement the controller as a seperate HugeTLB cgroup.
* Folded fixup patches in -mm to the original patches
Changes from V5:
* Address review feedback.
Changes from V4:
* Add support for charge/uncharge during page migration
* Drop the usage of page->lru in unmap_hugepage_range.
Changes from v3:
* Address review feedback.
* Fix a bug in cgroup removal related parent charging with use_hierarchy set
Changes from V2:
* Changed the implementation to limit the HugeTLB usage during page
fault time. This simplifies the extension and keep it closer to
memcg design. This also allows to support cgroup removal with less
complexity. Only caveat is the application should ensure its HugeTLB
usage doesn't cross the cgroup limit.
Changes from V1:
* Changed the implementation as a memcg extension. We still use
the same logic to track the cgroup and range.
Changes from RFC post:
* Added support for HugeTLB cgroup hierarchy
* Added support for task migration
* Added documentation patch
* Other bug fixes
-aneesh
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next reply other threads:[~2012-05-30 14:39 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-30 14:38 Aneesh Kumar K.V [this message]
2012-05-30 14:38 ` [PATCH -V7 01/14] hugetlb: rename max_hstate to hugetlb_max_hstate Aneesh Kumar K.V
2012-05-31 0:48 ` Konrad Rzeszutek Wilk
2012-05-31 5:47 ` Aneesh Kumar K.V
2012-05-31 0:55 ` David Rientjes
2012-05-30 14:38 ` [PATCH -V7 02/14] hugetlbfs: don't use ERR_PTR with VM_FAULT* values Aneesh Kumar K.V
2012-05-31 0:54 ` Konrad Rzeszutek Wilk
2012-05-31 1:02 ` David Rientjes
2012-05-31 5:45 ` Aneesh Kumar K.V
2012-05-31 6:50 ` David Rientjes
2012-05-30 14:38 ` [PATCH -V7 03/14] hugetlbfs: add an inline helper for finding hstate index Aneesh Kumar K.V
2012-05-31 1:05 ` David Rientjes
2012-05-30 14:38 ` [PATCH -V7 04/14] hugetlb: use mmu_gather instead of a temporary linked list for accumulating pages Aneesh Kumar K.V
2012-05-31 1:56 ` David Rientjes
2012-05-31 5:35 ` Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 05/14] hugetlb: avoid taking i_mmap_mutex in unmap_single_vma() for hugetlb Aneesh Kumar K.V
2012-05-31 1:57 ` David Rientjes
2012-05-31 5:25 ` Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 06/14] hugetlb: simplify migrate_huge_page() Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 07/14] mm/page_cgroup: Make page_cgroup point to the cgroup rather than the mem_cgroup Aneesh Kumar K.V
2012-06-05 1:44 ` Kamezawa Hiroyuki
2012-06-05 2:53 ` Aneesh Kumar K.V
2012-06-05 3:40 ` Kamezawa Hiroyuki
2012-06-07 19:05 ` Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 08/14] hugetlbfs: add a list for tracking in-use HugeTLB pages Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 09/14] hugetlbfs: Make some static variables global Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 10/14] hugetlbfs: Add new HugeTLB cgroup Aneesh Kumar K.V
2012-05-31 1:19 ` Konrad Rzeszutek Wilk
2012-05-31 5:43 ` Aneesh Kumar K.V
2012-05-31 9:43 ` Michal Hocko
2012-05-31 14:01 ` Michal Hocko
2012-05-30 14:38 ` [PATCH -V7 11/14] hugetlbfs: add hugetlb cgroup control files Aneesh Kumar K.V
2012-05-31 1:32 ` Konrad Rzeszutek Wilk
2012-05-31 5:39 ` Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 12/14] hugetlb: add charge/uncharge calls for HugeTLB alloc/free Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 13/14] hugetlb: migrate hugetlb cgroup info from oldpage to new page during migration Aneesh Kumar K.V
2012-05-30 14:38 ` [PATCH -V7 14/14] hugetlb: add HugeTLB controller documentation Aneesh Kumar K.V
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1338388739-22919-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com \
--to=aneesh.kumar@linux.vnet.ibm.com \
--cc=akpm@linux-foundation.org \
--cc=cgroups@vger.kernel.org \
--cc=dhillf@gmail.com \
--cc=hannes@cmpxchg.org \
--cc=kamezawa.hiroyu@jp.fujitsu.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mhocko@suse.cz \
--cc=rientjes@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).