netdev - Re: [PATCH 23/10]Optimize the upload speed for PPP connection.

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Date:	Tue, 17 Nov 2009 16:45:30 +0800
From:	fangxiaozhi 00110321 <huananhu@...wei.com>
To:	netdev@...r.kernel.org, davem@...emloft.net,
	william.allen.simpson@...il.com
Subject: Re: [PATCH 23/10]Optimize the upload speed for PPP connection.

Dear All:

    Excuse me, how about my patch now?
    
    Will my patch be fixed in the newest kernel version? What version is it?


Best Regards,

Franko Fang
2009-11-17
----- 原邮件 -----
发件人: fangxiaozhi 00110321 <huananhu@...wei.com>
日期: 星期三, 十月 28日, 2009 下午3:30
主题: Re: PATCH 23/10]Optimize the upload speed for PPP connection.
收件人: davem@...emloft.net,william.allen.simpson@...il.com
抄送: netdev@...r.kernel.org,kernel@...r.kernel.org,zihan@...wei.com, greg@...ah.com,haegar@...net.de

> 
> Thanks your advice.
> 
> But generally, PAGE_SIZE is 4096, whether it is too large or not?
> 
> If PAGE_SIZE is really appropriate, then I can resubmit the patch.
> 
> Thanks very much.
> ----- Original Message ----- 
> From: "David Miller" <davem@...emloft.net>
> To: <william.allen.simpson@...il.com>
> Cc: <huananhu@...wei.com>; <netdev@...r.kernel.org>; <linux-
> kernel@...r.kernel.org>; <zihan@...wei.com>; <greg@...ah.com>; 
> <haegar@...net.de>Sent: Saturday, October 24, 2009 9:46 PM
> Subject: Re: PATCH 23/10]Optimize the upload speed for PPP connection.
> 
> 
> > From: William Allen Simpson <william.allen.simpson@...il.com>
> > Date: Fri, 23 Oct 2009 07:46:08 -0400
> > 
> >> Concur.  I'd go further than that, my code usually made room 
> for at
> >> least
> >> a full MTU (MRU) with HDLC escaping.  To minimize context switches,
> >> that
> >> should be 3014 ((1500 MRU + 2 FCS + 4 header) * 2 escapes + 2 
> flags).>> 
> >> Even in the old days, when memory was tight, context switches and
> >> interrupt
> >> time were more expensive, too.  PPP is supposed to scale to OC-192.
> > 
> > Actually I'd like to see ->obuf allocated externally and then
> > make it simply PAGE_SIZE.
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