From: Jesper Dangaard Brouer <brouer@redhat.com>
To: Alexander Lobakin <alobakin@pm.me>,
Mel Gorman <mgorman@techsingularity.net>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Chuck Lever <chuck.lever@oracle.com>,
Christoph Hellwig <hch@infradead.org>,
Alexander Duyck <alexander.duyck@gmail.com>,
Matthew Wilcox <willy@infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
Linux-Net <netdev@vger.kernel.org>, Linux-MM <linux-mm@kvack.org>,
Linux-NFS <linux-nfs@vger.kernel.org>,
brouer@redhat.com
Subject: Re: [PATCH 0/7 v4] Introduce a bulk order-0 page allocator with two in-tree users
Date: Wed, 17 Mar 2021 17:38:44 +0100 [thread overview]
Message-ID: <20210317173844.6b10f879@carbon> (raw)
In-Reply-To: <20210317163055.800210-1-alobakin@pm.me>
On Wed, 17 Mar 2021 16:31:07 +0000
Alexander Lobakin <alobakin@pm.me> wrote:
> From: Mel Gorman <mgorman@techsingularity.net>
> Date: Fri, 12 Mar 2021 15:43:24 +0000
>
> Hi there,
>
> > This series is based on top of Matthew Wilcox's series "Rationalise
> > __alloc_pages wrapper" and does not apply to 5.12-rc2. If you want to
> > test and are not using Andrew's tree as a baseline, I suggest using the
> > following git tree
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux.git mm-bulk-rebase-v4r2
>
> I gave this series a go on my setup, it showed a bump of 10 Mbps on
> UDP forwarding, but dropped TCP forwarding by almost 50 Mbps.
>
> (4 core 1.2GHz MIPS32 R2, page size of 16 Kb, Page Pool order-0
> allocations with MTU of 1508 bytes, linear frames via build_skb(),
> GRO + TSO/USO)
What NIC driver is this?
> I didn't have time to drill into the code, so for now can't provide
> any additional details. You can request anything you need though and
> I'll try to find a window to collect it.
>
> > Note to Chuck and Jesper -- as this is a cross-subsystem series, you may
> > want to send the sunrpc and page_pool pre-requisites (patches 4 and 6)
> > directly to the subsystem maintainers. While sunrpc is low-risk, I'm
> > vaguely aware that there are other prototype series on netdev that affect
> > page_pool. The conflict should be obvious in linux-next.
--
Best regards,
Jesper Dangaard Brouer
MSc.CS, Principal Kernel Engineer at Red Hat
LinkedIn: http://www.linkedin.com/in/brouer
next prev parent reply other threads:[~2021-03-17 17:30 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-12 15:43 [PATCH 0/7 v4] Introduce a bulk order-0 page allocator with two in-tree users Mel Gorman
2021-03-12 15:43 ` [PATCH 1/7] mm/page_alloc: Move gfp_allowed_mask enforcement to prepare_alloc_pages Mel Gorman
2021-03-19 16:11 ` Vlastimil Babka
2021-03-19 17:49 ` Mel Gorman
2021-03-12 15:43 ` [PATCH 2/7] mm/page_alloc: Rename alloced to allocated Mel Gorman
2021-03-19 16:22 ` Vlastimil Babka
2021-03-12 15:43 ` [PATCH 3/7] mm/page_alloc: Add a bulk page allocator Mel Gorman
2021-03-19 18:18 ` Vlastimil Babka
2021-03-22 8:30 ` Mel Gorman
2021-03-12 15:43 ` [PATCH 4/7] SUNRPC: Set rq_page_end differently Mel Gorman
2021-03-12 15:43 ` [PATCH 5/7] SUNRPC: Refresh rq_pages using a bulk page allocator Mel Gorman
2021-03-12 18:44 ` Alexander Duyck
2021-03-12 19:22 ` Chuck Lever III
2021-03-13 12:59 ` Mel Gorman
2021-03-12 15:43 ` [PATCH 6/7] net: page_pool: refactor dma_map into own function page_pool_dma_map Mel Gorman
2021-03-12 15:43 ` [PATCH 7/7] net: page_pool: use alloc_pages_bulk in refill code path Mel Gorman
2021-03-12 19:44 ` Alexander Duyck
2021-03-12 20:05 ` Ilias Apalodimas
2021-03-15 13:39 ` Jesper Dangaard Brouer
2021-03-13 13:30 ` Mel Gorman
2021-03-17 16:31 ` [PATCH 0/7 v4] Introduce a bulk order-0 page allocator with two in-tree users Alexander Lobakin
2021-03-17 16:38 ` Jesper Dangaard Brouer [this message]
2021-03-17 16:52 ` Alexander Lobakin
2021-03-17 17:19 ` Jesper Dangaard Brouer
2021-03-17 22:25 ` Alexander Lobakin
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