All of lore.kernel.org
 help / color / mirror / Atom feed
From: David Miller <davem@davemloft.net>
To: eric.dumazet@gmail.com
Cc: netdev@vger.kernel.org, weiwan@google.com, ncardwell@google.com,
	ycheng@google.com
Subject: Re: [PATCH net] tcp: use current time in tcp_rcv_space_adjust()
Date: Wed, 06 Dec 2017 15:54:45 -0500 (EST)	[thread overview]
Message-ID: <20171206.155445.658202184783975963.davem@davemloft.net> (raw)
In-Reply-To: <1512587299.25033.11.camel@gmail.com>

From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 06 Dec 2017 11:08:19 -0800

> From: Eric Dumazet <edumazet@google.com>
> 
> When I switched rcv_rtt_est to high resolution timestamps, I forgot
> that tp->tcp_mstamp needed to be refreshed in tcp_rcv_space_adjust()
> 
> Using an old timestamp leads to autotuning lags.
> 
> Fixes: 645f4c6f2ebd ("tcp: switch rcv_rtt_est and rcvq_space to high resolution timestamps")
> Signed-off-by: Eric Dumazet <edumazet@google.com>

Applied and queued up for -stable, thanks Eric.

      parent reply	other threads:[~2017-12-06 20:54 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-06 19:08 [PATCH net] tcp: use current time in tcp_rcv_space_adjust() Eric Dumazet
2017-12-06 19:54 ` Neal Cardwell
2017-12-06 20:54 ` David Miller [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20171206.155445.658202184783975963.davem@davemloft.net \
    --to=davem@davemloft.net \
    --cc=eric.dumazet@gmail.com \
    --cc=ncardwell@google.com \
    --cc=netdev@vger.kernel.org \
    --cc=weiwan@google.com \
    --cc=ycheng@google.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.