netdev - Re: [PATCH net-next v2] net: sched: pie: enable timestamp based delay calculation

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Date:   Wed, 20 Nov 2019 12:32:02 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     gautamramk@...il.com
Cc:     jhs@...atatu.com, netdev@...r.kernel.org, lesliemonis@...il.com,
        tahiliani@...k.edu.in
Subject: Re: [PATCH net-next v2] net: sched: pie: enable timestamp based
 delay calculation

From: Gautam Ramakrishnan <gautamramk@...il.com>
Date: Wed, 20 Nov 2019 19:43:54 +0530

> RFC 8033 suggests an alternative approach to calculate the queue
> delay in PIE by using a timestamp on every enqueued packet. This
> patch adds an implementation of that approach and sets it as the
> default method to calculate queue delay. The previous method (based
> on Little's law) to calculate queue delay is set as optional.
> 
> Signed-off-by: Gautam Ramakrishnan <gautamramk@...il.com>
> Signed-off-by: Leslie Monis <lesliemonis@...il.com>
> Signed-off-by: Mohit P. Tahiliani <tahiliani@...k.edu.in>
> Acked-by: Dave Taht <dave.taht@...il.com>
> ---
> Changes from v1 to v2:
> - Made timestamp feature default and made average dequeue
>   rate estimator optional as Recommended by Dave.
> - Changed the position of the timestamp qdelay calculation
>   inside pie_process_dequeue().

Applied.