From: David Miller <davem@davemloft.net>
To: ycheng@google.com
Cc: ncardwell@google.com, edumazet@google.com, nanditad@google.com,
netdev@vger.kernel.org
Subject: Re: [PATCH v2 net-next 1/4] tcp: consolidate SYNACK RTT sampling
Date: Mon, 22 Jul 2013 18:02:55 -0700 (PDT) [thread overview]
Message-ID: <20130722.180255.685921996264320731.davem@davemloft.net> (raw)
In-Reply-To: <1374535248-27418-1-git-send-email-ycheng@google.com>
From: Yuchung Cheng <ycheng@google.com>
Date: Mon, 22 Jul 2013 16:20:45 -0700
> This patch series improve RTT sampling in three ways:
> 1. Sample RTT during fast recovery and reordering events.
> 2. Favor ack-based RTT to timestamps because of broken TS ECR fields
> 3. Consolidate the RTT measurement logic.
>
> The first patch consolidates SYNACK and other RTT measurement to use a
> central function tcp_ack_update_rtt(). A (small) bonus is now SYNACK
> RTT measurement happens after PAWS check, potentially reducing the
> impact of RTO seeding on bad TCP timestamps values.
>
> Signed-off-by: Yuchung Cheng <ycheng@google.com>
I like this series a lot, applied, thanks!
Next time please submit a seperate "[PATCH 0/4] xxx" posting.
If it has non-trivial content, I use the "0" posting as the
commit message of a merge commit when I apply your series.
What I did here was take the text:
====================
This patch series improve RTT sampling in three ways:
1. Sample RTT during fast recovery and reordering events.
2. Favor ack-based RTT to timestamps because of broken TS ECR fields
3. Consolidate the RTT measurement logic.
====================
and place it into that merge commit, removing it from the patch #1
commit message.
Thanks.
next prev parent reply other threads:[~2013-07-23 1:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-22 23:20 [PATCH v2 net-next 1/4] tcp: consolidate SYNACK RTT sampling Yuchung Cheng
2013-07-22 23:20 ` [PATCH v2 net-next 2/4] tcp: prefer packet timing to TS-ECR for RTT Yuchung Cheng
2013-07-22 23:20 ` [PATCH v2 net-next 3/4] tcp: measure RTT from new SACK Yuchung Cheng
2013-07-22 23:20 ` [PATCH v2 net-next 4/4] tcp: use RTT from SACK for RTO Yuchung Cheng
2013-07-23 1:02 ` David Miller [this message]
2013-07-23 15:54 ` [PATCH v2 net-next 1/4] tcp: consolidate SYNACK RTT sampling Yuchung Cheng
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