netdev - Re: TSO trimming question

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Message-ID: <20071221092927.GA32434@gondor.apana.org.au>
Date:	Fri, 21 Dec 2007 17:29:27 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	David Miller <davem@...emloft.net>
Cc:	billfink@...dspring.com, ilpo.jarvinen@...sinki.fi,
	netdev@...r.kernel.org, jheffner@....edu
Subject: Re: TSO trimming question

On Fri, Dec 21, 2007 at 01:27:20AM -0800, David Miller wrote:
>
> It's two shifts, and this gets scheduled along with the other
> instructions on many cpus so it's effectively free.
> 
> I don't see why this is even worth mentioning and discussing.

I totally agree.  Two shifts are way better than a branch.

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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