From: Jakub Kicinski <kuba@kernel.org>
To: Eric Dumazet <edumazet@google.com>
Cc: "David S . Miller" <davem@davemloft.net>,
Paolo Abeni <pabeni@redhat.com>,
netdev@vger.kernel.org, eric.dumazet@gmail.com,
Soheil Hassas Yeganeh <soheil@google.com>,
Neal Cardwell <ncardwell@google.com>,
Yuchung Cheng <ycheng@google.com>
Subject: Re: [RFC net-next 4/4] tcp: defer regular ACK while processing socket backlog
Date: Thu, 7 Sep 2023 11:10:50 -0700 [thread overview]
Message-ID: <20230907111050.30425753@kernel.org> (raw)
In-Reply-To: <CANn89i+TDVA9iXedyOgASce1Z2ZfdMS+7Nfw6ebOKkYerWo43g@mail.gmail.com>
On Thu, 7 Sep 2023 20:05:29 +0200 Eric Dumazet wrote:
> > Interesting. Some folks at Meta were recently looking into parsing RPCs
> > in the kernel to avoid unnecessary wakeups. Poor man's KCM using BPF
> > sockmaps. Passing message size hints from the sender would solve so
> > many problems..
>
> Yes, RPC headers make things easier for sure.
>
> (we internally have something similar named autolowat, where we parse
> headers to set sk->sk_rcvlowat dynamically)
Could this be turned into a BPF hook, possibly?
That's basically what I suggested the BPF people did but they like
to rewrite everything.
prev parent reply other threads:[~2023-09-07 18:10 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-06 20:10 [RFC net-next 0/4] tcp: backlog processing optims Eric Dumazet
2023-09-06 20:10 ` [RFC net-next 1/4] tcp: no longer release socket ownership in tcp_release_cb() Eric Dumazet
2023-09-06 20:10 ` [RFC net-next 2/4] net: sock_release_ownership() cleanup Eric Dumazet
2023-09-06 20:10 ` [RFC net-next 3/4] net: call prot->release_cb() when processing backlog Eric Dumazet
2023-09-06 20:10 ` [RFC net-next 4/4] tcp: defer regular ACK while processing socket backlog Eric Dumazet
2023-09-06 20:31 ` Yuchung Cheng
2023-09-06 23:07 ` Stephen Hemminger
2023-09-07 14:07 ` Neal Cardwell
2023-09-07 14:35 ` Soheil Hassas Yeganeh
[not found] ` <CAA93jw7Fuov-vmxiZdW7My-AVWCOFQo4XVm9bNwAg4Td2CUNCA@mail.gmail.com>
2023-09-07 16:54 ` Eric Dumazet
2023-09-07 17:09 ` Jakub Kicinski
2023-09-07 17:16 ` Eric Dumazet
2023-09-07 18:00 ` Jakub Kicinski
2023-09-07 18:05 ` Eric Dumazet
2023-09-07 18:10 ` Jakub Kicinski [this message]
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