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Date: Tue, 15 Jul 2025 16:19:11 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Jason Xing <kerneljasonxing@gmail.com>
Cc: Stanislav Fomichev <stfomichev@gmail.com>, davem@davemloft.net,
 edumazet@google.com, pabeni@redhat.com, bjorn@kernel.org,
 magnus.karlsson@intel.com, maciej.fijalkowski@intel.com,
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 joe@dama.to, willemdebruijn.kernel@gmail.com, bpf@vger.kernel.org,
 netdev@vger.kernel.org, Jason Xing <kernelxing@tencent.com>
Subject: Re: [PATCH net-next] xsk: skip validating skb list in xmit path
Message-ID: <20250715161911.32272364@kernel.org>
In-Reply-To: <CAL+tcoCiL0jjUO8RPiWX-+9VtjQm50ZeM5MQXn3Q6m+yNYryzQ@mail.gmail.com>
References: <20250713025756.24601-1-kerneljasonxing@gmail.com>
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On Tue, 15 Jul 2025 07:53:19 +0800 Jason Xing wrote:
> > Although, again, if you care about performance, why not use zerocopy
> > mode?  
> 
> I attached the performance impact because I'm working on the different
> modes in xsk to see how it really behaves. You can take it as a kind
> of investigation :)

How does the copy mode compare to a normal packet socket?