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Message-ID: <20230321123403.5e78d582@kernel.org>
Date: Tue, 21 Mar 2023 12:34:03 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
Cc: Kal Conley <kal.conley@...tris.com>,
Björn Töpel <bjorn@...nel.org>,
Magnus Karlsson <magnus.karlsson@...el.com>,
Jonathan Lemon <jonathan.lemon@...il.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Paolo Abeni <pabeni@...hat.com>,
"Alexei Starovoitov" <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>,
Jesper Dangaard Brouer <hawk@...nel.org>,
John Fastabend <john.fastabend@...il.com>,
<netdev@...r.kernel.org>, <bpf@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH bpf-next 1/3] xsk: Support UMEM chunk_size > PAGE_SIZE
On Tue, 21 Mar 2023 11:48:27 +0100 Maciej Fijalkowski wrote:
> tell mlx4 does not support xdp multi-buffer, so you were testing this
FWIW
ConnectX-3 [PRO] == mlx4
ConnectX-4 == mlx5
But agreed that more info would help. You'd need to have some TLB
pressure to see benefit of huge pages.
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