From: Michal Hocko <mhocko@kernel.org>
To: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: netdev@vger.kernel.org, lirongqing@baidu.com,
linyunsheng@huawei.com,
Ilias Apalodimas <ilias.apalodimas@linaro.org>,
Saeed Mahameed <saeedm@mellanox.com>,
peterz@infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [net-next v4 PATCH] page_pool: handle page recycle for NUMA_NO_NODE condition
Date: Thu, 19 Dec 2019 13:09:25 +0100 [thread overview]
Message-ID: <20191219120925.GD26945@dhcp22.suse.cz> (raw)
In-Reply-To: <157665609556.170047.13435503155369210509.stgit@firesoul>
On Wed 18-12-19 09:01:35, Jesper Dangaard Brouer wrote:
[...]
> For the NUMA_NO_NODE case, when a NIC IRQ is moved to another NUMA
> node, then ptr_ring will be emptied in 65 (PP_ALLOC_CACHE_REFILL+1)
> chunks per allocation and allocation fall-through to the real
> page-allocator with the new nid derived from numa_mem_id(). We accept
> that transitioning the alloc cache doesn't happen immediately.
Could you explain what is the expected semantic of NUMA_NO_NODE in this
case? Does it imply always the preferred locality? See my other email[1] to
this matter.
[1] http://lkml.kernel.org/r/20191219115338.GC26945@dhcp22.suse.cz
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2019-12-19 12:09 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-17 23:17 [net-next v3 PATCH] page_pool: handle page recycle for NUMA_NO_NODE condition Jesper Dangaard Brouer
2019-12-18 7:44 ` Jesper Dangaard Brouer
2019-12-18 8:01 ` [net-next v4 " Jesper Dangaard Brouer
2019-12-18 14:27 ` 答复: " Li,Rongqing
2019-12-19 12:00 ` Jesper Dangaard Brouer
2019-12-19 12:47 ` 答复: " Li,Rongqing
2019-12-19 1:52 ` Yunsheng Lin
2019-12-19 12:15 ` Jesper Dangaard Brouer
2019-12-19 12:09 ` Michal Hocko [this message]
2019-12-19 13:35 ` Jesper Dangaard Brouer
2019-12-19 14:52 ` Michal Hocko
2019-12-19 15:28 ` Ilias Apalodimas
2019-12-19 14:20 ` [net-next v5 " Jesper Dangaard Brouer
2019-12-20 10:23 ` Ilias Apalodimas
2019-12-20 10:41 ` Jesper Dangaard Brouer
2019-12-20 10:49 ` Ilias Apalodimas
2019-12-20 15:22 ` Jesper Dangaard Brouer
2019-12-20 16:06 ` Ilias Apalodimas
2019-12-23 7:57 ` Ilias Apalodimas
2019-12-23 16:52 ` Jesper Dangaard Brouer
2019-12-23 22:10 ` Saeed Mahameed
2019-12-24 9:34 ` Ilias Apalodimas
2019-12-24 7:41 ` Ilias Apalodimas
2019-12-20 21:27 ` Saeed Mahameed
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=20191219120925.GD26945@dhcp22.suse.cz \
--to=mhocko@kernel.org \
--cc=brouer@redhat.com \
--cc=ilias.apalodimas@linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linyunsheng@huawei.com \
--cc=lirongqing@baidu.com \
--cc=netdev@vger.kernel.org \
--cc=peterz@infradead.org \
--cc=saeedm@mellanox.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