netdev - Re: HTB/HSFC shaping precision

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Date:	Thu, 22 Nov 2007 11:07:20 +0900
From:	"Ryousei Takano" <ryousei@...il.com>
To:	hadi@...erus.ca
Cc:	"Denys Fedoryshchenko" <denys@...p.net.lb>,
	"Jarek Poplawski" <jarkao2@...pl>, netdev@...r.kernel.org,
	takano-ryousei@...t.go.jp
Subject: Re: HTB/HSFC shaping precision

Hi jamal and denys,

> > One message later, thats what i dreamed about :-)
> > Subject: [RFC][PATCH 1/3] NET_SCHED: PSPacer qdisc module
> > On website they have very good explanation...
> > http://www.gridmpi.org/gridtcp.jsp
>
> That looks interesting - without reading the papers a few questions are
> developing in my brain cells; for example it looks very similar to what
> the chelsio NICs claim to do (which could be a good thing for TCP).
> Whenever i see someone implementing something in hardware, i always get
> flushes of "patents".
>
Thanks for looking our web page.

PSPacer has quite accurate shaping precision.
The point is that special hardware like the chelsio NICs is not required of it.
PSPacer uses a gap packet, whose format is IEEE 802.3x pause frame,
to control the interval between outgoing packets.
As far as I know, it is a unique approach.

Best Regards,
Ryousei Takano
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