From: David Miller <davem@davemloft.net>
To: dccp@vger.kernel.org
Subject: Re: [PATCH 1/6] [DCCP]: Reuse ktime_get_real() calls again
Date: Wed, 26 Sep 2007 05:39:24 +0000 [thread overview]
Message-ID: <20070925.223924.22185946.davem@davemloft.net> (raw)
In-Reply-To: <20070922210917.GF4887@ghostprotocols.net>
From: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Date: Sat, 22 Sep 2007 18:09:17 -0300
> This patch reduces the number of timestamps taken in the receive path
> for each packet.
>
> The ccid3_hc_tx_update_x() routine is called in
> * the receive path for each CCID3-controlled packet
> * for the nofeedback timer (if no feedback arrives during 4 RTT)
>
> Currently, when there is no loss, each packet gets timestamped twice.
> The patch resolves this by recycling the first timestamp taken on packet
> reception for RTT sampling.
>
> When the no_feedback_timer() is called, then the timestamp argument is
> simply set to NULL - so that ccid3_hc_tx_update_x() takes care of the logic.
>
> Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
> Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Applied.
prev parent reply other threads:[~2007-09-26 5:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-22 21:09 [PATCH 1/6] [DCCP]: Reuse ktime_get_real() calls again Arnaldo Carvalho de Melo
2007-09-26 5:39 ` David Miller [this message]
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