From: Eric Dumazet <eric.dumazet@gmail.com>
To: Vijay Subramanian <subramanian.vijay@gmail.com>
Cc: netdev@vger.kernel.org, Stephen Hemminger <shemminger@vyatta.com>,
Dave Taht <dave.taht@gmail.com>
Subject: Re: [PATCH IPROUTE2] tc-codel: Add manpage
Date: Thu, 24 May 2012 06:53:59 +0200 [thread overview]
Message-ID: <1337835239.3361.3954.camel@edumazet-glaptop> (raw)
In-Reply-To: <1337834034-27803-1-git-send-email-subramanian.vijay@gmail.com>
On Wed, 2012-05-23 at 21:33 -0700, Vijay Subramanian wrote:
> This patch adds the manpage for the CoDel (Controlled-Delay) AQM.
>
> Signed-off-by: Vijay Subramanian <subramanian.vijay@gmail.com>
> ---
Thanks !
> +.SS target
> +is the acceptable minimum standing/persistent queue delay. This minimum delay
> +is identified by tracking the local minimum queue delay that packets experience.
> +Default and recommended value is 5ms.
Although I can tell I prefer lower values on hosts.
On 10Gbe links, I used 500us target
> +
> +.SS interval
> +is used to ensure that the measured minimum delay does not become too stale. The
> +minimum delay must be experienced in the last epoch of length
> +.B interval.
> +It should be set on the order of the worst-case RTT through the bottleneck to
> +give endpoints sufficient time to react. Default value is 100ms.
Same here. In a datacenter, you might reduce this to 20ms or so...
next prev parent reply other threads:[~2012-05-24 4:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-24 4:33 [PATCH IPROUTE2] tc-codel: Add manpage Vijay Subramanian
2012-05-24 4:53 ` Eric Dumazet [this message]
2012-05-24 18:19 ` Vijay Subramanian
2012-05-24 18:28 ` Dave Taht
2012-05-24 16:05 ` Stephen Hemminger
2012-05-25 6:53 ` Jan Ceuleers
2012-05-25 7:15 ` Jan Ceuleers
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