linux-kernel - Re: [PATCH net-next] softirq: reduce latencies

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Message-ID: <1357282407.21409.28206.camel@edumazet-glaptop>
Date:	Thu, 03 Jan 2013 22:53:27 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Tom Herbert <therbert@...gle.com>
Subject: Re: [PATCH net-next] softirq: reduce latencies

On Fri, 2013-01-04 at 14:16 +0900, Namhyung Kim wrote:

> Probably a silly question:
> 
> Why not using ktime rather than jiffies for this?

ktime is too expensive on some hardware.

Here we only want a safety belt, no need for high time resolution.


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