linux-kernel - Re: txqueuelen has wrong units; should be time

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Message-ID: <alpine.DEB.1.10.1102270758580.11974@uplift.swm.pp.se>
Date:	Sun, 27 Feb 2011 08:02:03 +0100 (CET)
From:	Mikael Abrahamsson <swmike@....pp.se>
To:	Albert Cahalan <acahalan@...il.com>
cc:	linux-kernel <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org
Subject: Re: txqueuelen has wrong units; should be time

On Sun, 27 Feb 2011, Albert Cahalan wrote:

> Nanoseconds seems fine; it's unlikely you'd ever want
> more than 4.2 seconds (32-bit unsigned) of queue.

I think this is shortsighted and I'm sure someone will come up with a case 
where 4.2 seconds isn't enough. Let's not build in those kinds of 
limitations from start.

Why not make it 64bit and go to picoseconds from start?

If you need to make it 32bit unsigned, I'd suggest to start from 
microseconds instead. It's less likely someone would want less than a 
microsecond of queue, than someone wanting more than 4.2 seconds of queue.

-- 
Mikael Abrahamsson    email: swmike@....pp.se
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