From: patchwork-bot+netdevbpf@kernel.org
To: Eric Dumazet <edumazet@google.com>
Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com,
ncardwell@google.com, horms@kernel.org, kuniyu@amazon.com,
jonesrick@google.com, weiwan@google.com, netdev@vger.kernel.org,
eric.dumazet@gmail.com
Subject: Re: [PATCH net-next 00/11] tcp: receive side improvements
Date: Thu, 15 May 2025 18:50:44 +0000 [thread overview]
Message-ID: <174733504401.3213749.1321333360222183745.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20250513193919.1089692-1-edumazet@google.com>
Hello:
This series was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Tue, 13 May 2025 19:39:08 +0000 you wrote:
> We have set tcp_rmem[2] to 15 MB for about 8 years at Google,
> but had some issues for high speed flows on very small RTT.
>
> TCP rx autotuning has a tendency to overestimate the RTT,
> thus tp->rcvq_space.space and sk->sk_rcvbuf.
>
> This makes TCP receive queues much bigger than necessary,
> to a point cpu caches are evicted before application can
> copy the data, on cpus using DDIO.
>
> [...]
Here is the summary with links:
- [net-next,01/11] tcp: add tcp_rcvbuf_grow() tracepoint
https://git.kernel.org/netdev/net-next/c/c1269d3d12b8
- [net-next,02/11] tcp: fix sk_rcvbuf overshoot
https://git.kernel.org/netdev/net-next/c/65c5287892e9
- [net-next,03/11] tcp: adjust rcvbuf in presence of reorders
https://git.kernel.org/netdev/net-next/c/63ad7dfedfae
- [net-next,04/11] tcp: add receive queue awareness in tcp_rcv_space_adjust()
https://git.kernel.org/netdev/net-next/c/ea33537d8292
- [net-next,05/11] tcp: remove zero TCP TS samples for autotuning
https://git.kernel.org/netdev/net-next/c/d59fc95be9d0
- [net-next,06/11] tcp: fix initial tp->rcvq_space.space value for passive TS enabled flows
https://git.kernel.org/netdev/net-next/c/cd171461b90a
- [net-next,07/11] tcp: always seek for minimal rtt in tcp_rcv_rtt_update()
https://git.kernel.org/netdev/net-next/c/b879dcb1aeec
- [net-next,08/11] tcp: skip big rtt sample if receive queue is not empty
https://git.kernel.org/netdev/net-next/c/a00f135cd986
- [net-next,09/11] tcp: increase tcp_limit_output_bytes default value to 4MB
https://git.kernel.org/netdev/net-next/c/9ea3bfa61b09
- [net-next,10/11] tcp: always use tcp_limit_output_bytes limitation
https://git.kernel.org/netdev/net-next/c/c4221a8cc3a7
- [net-next,11/11] tcp: increase tcp_rmem[2] to 32 MB
https://git.kernel.org/netdev/net-next/c/572be9bf9d0d
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
next prev parent reply other threads:[~2025-05-15 18:50 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-13 19:39 [PATCH net-next 00/11] tcp: receive side improvements Eric Dumazet
2025-05-13 19:39 ` [PATCH net-next 01/11] tcp: add tcp_rcvbuf_grow() tracepoint Eric Dumazet
2025-05-14 15:30 ` David Ahern
2025-05-14 15:38 ` Eric Dumazet
2025-05-14 15:46 ` David Ahern
2025-05-14 16:33 ` Eric Dumazet
2025-05-13 19:39 ` [PATCH net-next 02/11] tcp: fix sk_rcvbuf overshoot Eric Dumazet
2025-05-13 19:39 ` [PATCH net-next 03/11] tcp: adjust rcvbuf in presence of reorders Eric Dumazet
2025-05-13 19:39 ` [PATCH net-next 04/11] tcp: add receive queue awareness in tcp_rcv_space_adjust() Eric Dumazet
2025-05-13 19:39 ` [PATCH net-next 05/11] tcp: remove zero TCP TS samples for autotuning Eric Dumazet
2025-05-13 19:39 ` [PATCH net-next 06/11] tcp: fix initial tp->rcvq_space.space value for passive TS enabled flows Eric Dumazet
2025-05-13 19:39 ` [PATCH net-next 07/11] tcp: always seek for minimal rtt in tcp_rcv_rtt_update() Eric Dumazet
2025-05-13 19:39 ` [PATCH net-next 08/11] tcp: skip big rtt sample if receive queue is not empty Eric Dumazet
2025-05-13 19:39 ` [PATCH net-next 09/11] tcp: increase tcp_limit_output_bytes default value to 4MB Eric Dumazet
2025-05-13 19:39 ` [PATCH net-next 10/11] tcp: always use tcp_limit_output_bytes limitation Eric Dumazet
2025-05-13 19:39 ` [PATCH net-next 11/11] tcp: increase tcp_rmem[2] to 32 MB Eric Dumazet
2025-05-14 20:24 ` Jakub Kicinski
2025-05-14 20:53 ` Kuniyuki Iwashima
2025-05-14 21:20 ` Kuniyuki Iwashima
2025-05-14 21:26 ` Jakub Kicinski
2025-05-14 21:28 ` Kuniyuki Iwashima
2025-05-14 20:26 ` [PATCH net-next 00/11] tcp: receive side improvements Jakub Kicinski
2025-05-15 18:50 ` patchwork-bot+netdevbpf [this message]
2025-05-22 14:03 ` Daniel Borkmann
2025-05-22 14:11 ` Eric Dumazet
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