From: Jakub Kicinski <kuba@kernel.org>
To: edumazet@google.com, ncardwell@google.com
Cc: chia-yu.chang@nokia-bell-labs.com, jolsa@kernel.org,
yonghong.song@linux.dev, song@kernel.org,
linux-kselftest@vger.kernel.org, memxor@gmail.com,
shuah@kernel.org, martin.lau@linux.dev, ast@kernel.org,
daniel@iogearbox.net, andrii@kernel.org, eddyz87@gmail.com,
horms@kernel.org, dsahern@kernel.org, bpf@vger.kernel.org,
netdev@vger.kernel.org, pabeni@redhat.com, jhs@mojatatu.com,
stephen@networkplumber.org, davem@davemloft.net,
andrew+netdev@lunn.ch, donald.hunter@gmail.com,
kuniyu@google.com, ij@kernel.org,
koen.de_schepper@nokia-bell-labs.com, g.white@cablelabs.com,
ingemar.s.johansson@ericsson.com, mirja.kuehlewind@ericsson.com,
cheshire@apple.com, rs.ietf@gmx.at, Jason_Livingood@comcast.com,
vidhi_goel@apple.com
Subject: Re: [PATCH v2 net-next 1/1] tcp: Replace min_tso_segs() with tso_segs() CC callback for TCP Prague
Date: Mon, 15 Jun 2026 18:51:02 -0700 [thread overview]
Message-ID: <20260615185102.5e8de52d@kernel.org> (raw)
In-Reply-To: <20260614071756.239686-1-chia-yu.chang@nokia-bell-labs.com>
On Sun, 14 Jun 2026 09:17:56 +0200 chia-yu.chang@nokia-bell-labs.com
wrote:
> This patch replaces existing min_tso_segs() with tso_segs() CC callbak
> for CC algorithm to provides explicit tso segment number of each data
> burst and overrides tcp_tso_autosize().
>
> No functional change.
Eric, Neal, looks good?
The min rtt thing in tcp_tso_autosize() helps a bit but if the sender
gets congested for a longer stretch min_rtts on new connections are
high and we're back to sending small TSO, keeping the sender overloaded.
Which is to say - I _hope_ this also solves some of Meta's problems :)
next prev parent reply other threads:[~2026-06-16 1:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-14 7:17 [PATCH v2 net-next 1/1] tcp: Replace min_tso_segs() with tso_segs() CC callback for TCP Prague chia-yu.chang
2026-06-16 1:51 ` Jakub Kicinski [this message]
2026-06-16 2:17 ` Jakub Kicinski
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