From: Jason Gunthorpe <jgg-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
To: "Daniel P. Berrangé" <berrange-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Alistair Popple <apopple-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Michal Hocko <mhocko-IBi9RG/b67k@public.gmane.org>,
Yosry Ahmed <yosryahmed-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
jhubbard-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org,
tjmercier-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org,
surenb-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
mkoutny-IBi9RG/b67k@public.gmane.org,
daniel-/w4YWyX8dFk@public.gmane.org,
Alex Williamson
<alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Zefan Li <lizefan.x-EC8Uxl6Npydl57MIdRCFDg@public.gmane.org>,
Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
Subject: Re: [PATCH 14/19] mm: Introduce a cgroup for pinned memory
Date: Thu, 23 Feb 2023 13:31:44 -0400 [thread overview]
Message-ID: <Y/ejAKU7l8DFrkR8@nvidia.com> (raw)
In-Reply-To: <Y/ct88JBeQuSmCuj-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
On Thu, Feb 23, 2023 at 09:12:19AM +0000, Daniel P. Berrangé wrote:
> The memory limits we can set on VMs are somewhat limited. In general
> we prefer to avoid setting any hard per-VM memory cap by default.
So if you don't use hard limits on the memcg..
But to do this with a hard limit:
> We do still have to apply some tuning for VFIO, around what amount
> of memory it is allowed to lock, but that is not so bad as we just
> need to allow it to lock guest RAM which is known + an finite extra
> amount, so don't need to take account of all of QEMU's memory
> allocations in general.
Will need its own controller, right?
Jason
WARNING: multiple messages have this Message-ID (diff)
From: Jason Gunthorpe <jgg@nvidia.com>
To: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: Alistair Popple <apopple@nvidia.com>, Tejun Heo <tj@kernel.org>,
Michal Hocko <mhocko@suse.com>,
Yosry Ahmed <yosryahmed@google.com>,
linux-mm@kvack.org, cgroups@vger.kernel.org,
linux-kernel@vger.kernel.org, jhubbard@nvidia.com,
tjmercier@google.com, hannes@cmpxchg.org, surenb@google.com,
mkoutny@suse.com, daniel@ffwll.ch,
Alex Williamson <alex.williamson@redhat.com>,
Zefan Li <lizefan.x@bytedance.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH 14/19] mm: Introduce a cgroup for pinned memory
Date: Thu, 23 Feb 2023 13:31:44 -0400 [thread overview]
Message-ID: <Y/ejAKU7l8DFrkR8@nvidia.com> (raw)
In-Reply-To: <Y/ct88JBeQuSmCuj@redhat.com>
On Thu, Feb 23, 2023 at 09:12:19AM +0000, Daniel P. Berrangé wrote:
> The memory limits we can set on VMs are somewhat limited. In general
> we prefer to avoid setting any hard per-VM memory cap by default.
So if you don't use hard limits on the memcg..
But to do this with a hard limit:
> We do still have to apply some tuning for VFIO, around what amount
> of memory it is allowed to lock, but that is not so bad as we just
> need to allow it to lock guest RAM which is known + an finite extra
> amount, so don't need to take account of all of QEMU's memory
> allocations in general.
Will need its own controller, right?
Jason
next prev parent reply other threads:[~2023-02-23 17:31 UTC|newest]
Thread overview: 128+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-06 7:47 [PATCH 00/19] mm: Introduce a cgroup to limit the amount of locked and pinned memory Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-06 7:47 ` [PATCH 01/19] mm: Introduce vm_account Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-06 7:47 ` [PATCH 08/19] vfio/spapr_tce: Convert accounting to pinned_vm Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-06 7:47 ` [PATCH 09/19] io_uring: convert to use vm_account Alistair Popple
[not found] ` <44e6ead48bc53789191b22b0e140aeb82459e75f.1675669136.git-series.apopple-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-06 15:29 ` Jens Axboe
2023-02-06 15:29 ` Jens Axboe
[not found] ` <52d41a7e-1407-e74f-9206-6dd583b7b6b5-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>
2023-02-07 1:03 ` Alistair Popple
2023-02-07 1:03 ` Alistair Popple
2023-02-07 14:28 ` Jens Axboe
[not found] ` <eff3cc48-7279-2fbf-fdbd-f35eff2124d0-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>
2023-02-07 14:55 ` Jason Gunthorpe
2023-02-07 14:55 ` Jason Gunthorpe
[not found] ` <Y+JmdMJhPEGN0Zw+-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-07 17:05 ` Jens Axboe
2023-02-07 17:05 ` Jens Axboe
[not found] ` <53816439-6473-1c4f-2134-02cd1c46cfe8-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>
2023-02-13 11:30 ` Alistair Popple
2023-02-13 11:30 ` Alistair Popple
2023-02-06 7:47 ` [PATCH 10/19] net: skb: Switch to using vm_account Alistair Popple
2023-02-06 7:47 ` [PATCH 11/19] xdp: convert to use vm_account Alistair Popple
2023-02-06 7:47 ` [PATCH 12/19] kvm/book3s_64_vio: Convert account_locked_vm() to vm_account_pinned() Alistair Popple
2023-02-06 7:47 ` Alistair Popple
[not found] ` <cover.c238416f0e82377b449846dbb2459ae9d7030c8e.1675669136.git-series.apopple-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-06 7:47 ` [PATCH 02/19] drivers/vhost: Convert to use vm_account Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-06 7:47 ` [PATCH 03/19] drivers/vdpa: Convert vdpa to use the new vm_structure Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-06 7:47 ` [PATCH 04/19] infiniband/umem: Convert to use vm_account Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-06 7:47 ` [PATCH 05/19] RMDA/siw: " Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-12 17:32 ` Bernard Metzler
2023-02-06 7:47 ` [PATCH 06/19] RDMA/usnic: convert " Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-06 7:47 ` [PATCH 07/19] vfio/type1: Charge pinned pages to pinned_vm instead of locked_vm Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-06 7:47 ` [PATCH 13/19] fpga: dfl: afu: convert to use vm_account Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-06 7:47 ` [PATCH 14/19] mm: Introduce a cgroup for pinned memory Alistair Popple
2023-02-06 7:47 ` Alistair Popple
[not found] ` <c7b5e502d1a3b9b8f6e96cbf9ca553b143c327e0.1675669136.git-series.apopple-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-06 21:01 ` Yosry Ahmed
2023-02-06 21:01 ` Yosry Ahmed
2023-02-06 21:14 ` Tejun Heo
2023-02-06 21:14 ` Tejun Heo
[not found] ` <Y+Fttp1ozejoSQzl-NiLfg/pYEd1N0TnZuCh8vA@public.gmane.org>
2023-02-06 22:32 ` Yosry Ahmed
2023-02-06 22:32 ` Yosry Ahmed
2023-02-06 22:36 ` Tejun Heo
[not found] ` <Y+GA6Y7SVhAW5Xm9-NiLfg/pYEd1N0TnZuCh8vA@public.gmane.org>
2023-02-06 22:39 ` Yosry Ahmed
2023-02-06 22:39 ` Yosry Ahmed
[not found] ` <CAJD7tka6SC1ho-dffV0bK_acoZd-5DQzBOy0xg3TkOFG1zAPMg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2023-02-06 23:25 ` Tejun Heo
2023-02-06 23:25 ` Tejun Heo
[not found] ` <Y+GMbWWP/YhtJQqe-NiLfg/pYEd1N0TnZuCh8vA@public.gmane.org>
2023-02-06 23:34 ` Yosry Ahmed
2023-02-06 23:34 ` Yosry Ahmed
2023-02-06 23:40 ` Jason Gunthorpe
2023-02-06 23:40 ` Jason Gunthorpe
[not found] ` <Y+GQB9I6MFN6BOFw-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-07 0:32 ` Tejun Heo
2023-02-07 0:32 ` Tejun Heo
[not found] ` <Y+GcJQRhvjqFaaSp-qYNAdHglDFBN0TnZuCh8vA@public.gmane.org>
2023-02-07 12:19 ` Jason Gunthorpe
2023-02-07 12:19 ` Jason Gunthorpe
2023-02-15 19:00 ` Michal Hocko
2023-02-15 19:00 ` Michal Hocko
[not found] ` <Y+0rxoM4w9nilUMZ-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2023-02-15 19:07 ` Jason Gunthorpe
2023-02-15 19:07 ` Jason Gunthorpe
[not found] ` <Y+0tWZxMUx/NZ3Ne-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-16 8:04 ` Michal Hocko
2023-02-16 8:04 ` Michal Hocko
[not found] ` <Y+3jcw9vo4ml5p0M-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2023-02-16 12:45 ` Jason Gunthorpe
2023-02-16 12:45 ` Jason Gunthorpe
[not found] ` <Y+4lcq4Fge27TQIn-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-21 16:51 ` Tejun Heo
2023-02-21 16:51 ` Tejun Heo
2023-02-21 17:25 ` Jason Gunthorpe
[not found] ` <Y/T+pw25oGmKqz1k-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-21 17:29 ` Tejun Heo
2023-02-21 17:29 ` Tejun Heo
[not found] ` <Y/T/bkcYc9Krw4rE-NiLfg/pYEd1N0TnZuCh8vA@public.gmane.org>
2023-02-21 17:51 ` Jason Gunthorpe
2023-02-21 17:51 ` Jason Gunthorpe
[not found] ` <Y/UEkNn0O65Pfi4e-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-21 18:07 ` Tejun Heo
2023-02-21 18:07 ` Tejun Heo
[not found] ` <Y/UIURDjR9pv+gzx-NiLfg/pYEd1N0TnZuCh8vA@public.gmane.org>
2023-02-21 19:26 ` Jason Gunthorpe
2023-02-21 19:26 ` Jason Gunthorpe
[not found] ` <Y/Ua6VcNe/DFh7X4-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-21 19:45 ` Tejun Heo
2023-02-21 19:45 ` Tejun Heo
2023-02-21 19:49 ` Tejun Heo
2023-02-21 19:49 ` Tejun Heo
2023-02-21 19:57 ` Jason Gunthorpe
[not found] ` <Y/UiQmuVwh2eqrfA-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-22 11:38 ` Alistair Popple
2023-02-22 11:38 ` Alistair Popple
[not found] ` <87o7pmnd0p.fsf-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-22 12:57 ` Jason Gunthorpe
2023-02-22 12:57 ` Jason Gunthorpe
[not found] ` <Y/YRJNwwvqp7nKKt-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-22 22:59 ` Alistair Popple
2023-02-22 22:59 ` Alistair Popple
2023-02-23 0:05 ` Christoph Hellwig
[not found] ` <Y/at3iYz/xBSPPM+-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2023-02-23 0:35 ` Alistair Popple
2023-02-23 0:35 ` Alistair Popple
[not found] ` <87k009nvnr.fsf-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-23 1:53 ` Jason Gunthorpe
2023-02-23 1:53 ` Jason Gunthorpe
2023-02-23 9:12 ` Daniel P. Berrangé
[not found] ` <Y/ct88JBeQuSmCuj-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2023-02-23 17:31 ` Jason Gunthorpe [this message]
2023-02-23 17:31 ` Jason Gunthorpe
2023-02-23 17:18 ` T.J. Mercier
[not found] ` <CABdmKX18MY19bnsxN5W38Z9zmoaZx+S4+zzN_5XCYDBruwPrLg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2023-02-23 17:28 ` Jason Gunthorpe
2023-02-23 17:28 ` Jason Gunthorpe
2023-02-23 18:03 ` Yosry Ahmed
[not found] ` <CAJD7tkadBRP22qP63-SjKSch1im9sHLoMzc6c2h10+ggbuxqMg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2023-02-23 18:10 ` Jason Gunthorpe
2023-02-23 18:10 ` Jason Gunthorpe
[not found] ` <Y/esMBOyTaJnv5CW-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-23 18:14 ` Yosry Ahmed
2023-02-23 18:14 ` Yosry Ahmed
2023-02-23 18:15 ` Tejun Heo
[not found] ` <Y/etNfwxHv8XO3iC-NiLfg/pYEd1N0TnZuCh8vA@public.gmane.org>
2023-02-23 18:17 ` Jason Gunthorpe
2023-02-23 18:17 ` Jason Gunthorpe
[not found] ` <Y/etrtvyaiwRIo6f-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2023-02-23 18:22 ` Tejun Heo
2023-02-23 18:22 ` Tejun Heo
2023-02-07 1:00 ` Waiman Long
2023-02-07 1:00 ` Waiman Long
2023-02-07 1:03 ` Tejun Heo
[not found] ` <Y+GjSTu9vE/A/EKG-qYNAdHglDFBN0TnZuCh8vA@public.gmane.org>
2023-02-07 1:50 ` Alistair Popple
2023-02-07 1:50 ` Alistair Popple
2023-02-06 7:47 ` [PATCH 15/19] mm/util: Extend vm_account to charge pages against the pin cgroup Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-06 7:47 ` [PATCH 16/19] mm/util: Refactor account_locked_vm Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-06 7:47 ` [PATCH 17/19] mm: Convert mmap and mlock to use account_locked_vm Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-06 7:47 ` [PATCH 18/19] mm/mmap: Charge locked memory to pins cgroup Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-06 21:12 ` Yosry Ahmed
2023-02-06 7:47 ` [PATCH 19/19] selftests/vm: Add pins-cgroup selftest for mlock/mmap Alistair Popple
2023-02-06 7:47 ` Alistair Popple
2023-02-16 11:01 ` [PATCH 00/19] mm: Introduce a cgroup to limit the amount of locked and pinned memory David Hildenbrand
2023-02-16 11:01 ` David Hildenbrand
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=Y/ejAKU7l8DFrkR8@nvidia.com \
--to=jgg-ddmlm1+adcrqt0dzr+alfa@public.gmane.org \
--cc=akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org \
--cc=alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org \
--cc=apopple-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org \
--cc=berrange-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org \
--cc=cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=daniel-/w4YWyX8dFk@public.gmane.org \
--cc=hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org \
--cc=jhubbard-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org \
--cc=lizefan.x-EC8Uxl6Npydl57MIdRCFDg@public.gmane.org \
--cc=mhocko-IBi9RG/b67k@public.gmane.org \
--cc=mkoutny-IBi9RG/b67k@public.gmane.org \
--cc=surenb-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org \
--cc=tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
--cc=tjmercier-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org \
--cc=yosryahmed-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.