From: Gregory Price <gourry@gourry.net>
To: Matthew Wilcox <willy@infradead.org>
Cc: "Ritesh Harjani (IBM)" <ritesh.list@gmail.com>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Amir Goldstein <amir73il@gmail.com>,
Christian Brauner <brauner@kernel.org>, Jan Kara <jack@suse.cz>,
lsf-pc <lsf-pc@lists.linux-foundation.org>,
Bharata B Rao <bharata@amd.com>,
Donet Tom <donettom@linux.ibm.com>,
Aboorva Devarajan <aboorvad@linux.ibm.com>,
linux-mm@kvack.org, Ojaswin Mujoo <ojaswin@linux.ibm.com>
Subject: Re: [LSF/MM/BPF BoF Session] Numa-Aware Placement for Page Cache Pages
Date: Sat, 2 May 2026 16:49:51 +0100 [thread overview]
Message-ID: <afYdH4Alu9QA18CO@gourry-fedora-PF4VCD3F> (raw)
In-Reply-To: <afYQz3YJdWB2R-1q@gourry-fedora-PF4VCD3F>
On Sat, May 02, 2026 at 03:57:19PM +0100, Gregory Price wrote:
> On Thu, Apr 30, 2026 at 02:15:19PM +0100, Matthew Wilcox wrote:
>
> fd = open()
> buf = mmap(fd, ...)
> mbind(buf, device_node)
> /* fault file pages directly onto device memory */
>
maybe more explicitly, something like this
fcntl(fd, F_SET_FILE_NUMA_NODE, gpu_nid); /* pref node */
mbind(addr, size, MPOL_BIND, ..., MOVE_ALL); /* move existing */
madvise(addr, size, MADV_POPULATE_READ); /* fault the rest */
next prev parent reply other threads:[~2026-05-02 15:49 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-30 11:33 [LSF/MM/BPF BoF Session] Numa-Aware Placement for Page Cache Pages Ritesh Harjani (IBM)
2026-04-30 13:15 ` Matthew Wilcox
2026-04-30 14:43 ` Ritesh Harjani
2026-05-02 14:57 ` Gregory Price
2026-05-02 15:49 ` Gregory Price [this message]
2026-05-03 16:18 ` Ritesh Harjani
2026-05-03 23:48 ` Gregory Price
2026-05-02 23:00 ` Matthew Wilcox
2026-05-03 14:15 ` Gregory Price
2026-04-30 17:32 ` Gregory Price
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