From: Tim Chen <tim.c.chen@linux.intel.com>
To: Gang Li <gang.li@linux.dev>, David Hildenbrand <david@redhat.com>,
David Rientjes <rientjes@google.com>,
Mike Kravetz <mike.kravetz@oracle.com>,
Muchun Song <muchun.song@linux.dev>,
Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
ligang.bdlg@bytedance.com
Subject: Re: [RFC PATCH v2 3/5] padata: dispatch works on different nodes
Date: Tue, 12 Dec 2023 15:40:18 -0800 [thread overview]
Message-ID: <b2e7daff1e314d927cc4b4713afa31ac25787825.camel@linux.intel.com> (raw)
In-Reply-To: <20231208025240.4744-4-gang.li@linux.dev>
>
> list_for_each_entry(pw, &works, pw_list)
> - queue_work(system_unbound_wq, &pw->pw_work);
> + if (job->numa_aware)
> + queue_work_node((++nid % num_node_state(N_MEMORY)),
The nid may fall on a NUMA node with only memory but no CPU. In that case you
may still put the work on the unbound queue. You could end up on one CPU node for work
from all memory nodes without CPU. Is this what you want? Or you would
like to spread them between CPU nodes?
Tim
> + system_unbound_wq, &pw->pw_work);
> + else
> + queue_work(system_unbound_wq, &pw->pw_work);
>
> /* Use the current thread, which saves starting a workqueue worker. */
> padata_work_init(&my_work, padata_mt_helper, &ps, PADATA_WORK_ONSTACK);
next prev parent reply other threads:[~2023-12-12 23:40 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-08 2:52 [RFC PATCH v2 0/5] hugetlb: parallelize hugetlb page init on boot Gang Li
2023-12-08 2:52 ` [RFC PATCH v2 1/5] hugetlb: code clean for hugetlb_hstate_alloc_pages Gang Li
2023-12-08 2:52 ` [RFC PATCH v2 2/5] hugetlb: split hugetlb_hstate_alloc_pages Gang Li
2023-12-08 2:52 ` [RFC PATCH v2 3/5] padata: dispatch works on different nodes Gang Li
2023-12-12 23:40 ` Tim Chen [this message]
2023-12-18 6:46 ` Gang Li
2023-12-27 10:33 ` Gang Li
2023-12-08 2:52 ` [RFC PATCH v2 4/5] hugetlb: parallelize 2M hugetlb allocation and initialization Gang Li
2023-12-08 2:52 ` [RFC PATCH v2 5/5] hugetlb: parallelize 1G hugetlb initialization Gang Li
2023-12-08 2:56 ` [PATCH 1/1] hugetlb: add timing to hugetlb allocations on boot Gang Li
2023-12-12 20:06 ` [RFC PATCH v2 0/5] hugetlb: parallelize hugetlb page init " Mike Kravetz
2023-12-21 7:22 ` Gang Li
2023-12-12 22:14 ` David Rientjes
2023-12-12 23:08 ` Mike Kravetz
2023-12-13 0:10 ` David Rientjes
2023-12-18 6:34 ` Gang Li
2023-12-22 4:33 ` David Rientjes
2023-12-25 5:21 ` David Rientjes
2023-12-25 6:24 ` Gang Li
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=b2e7daff1e314d927cc4b4713afa31ac25787825.camel@linux.intel.com \
--to=tim.c.chen@linux.intel.com \
--cc=akpm@linux-foundation.org \
--cc=david@redhat.com \
--cc=gang.li@linux.dev \
--cc=ligang.bdlg@bytedance.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mike.kravetz@oracle.com \
--cc=muchun.song@linux.dev \
--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