From: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
To: Changli Gao <xiaosuo@gmail.com>
Cc: David Miller <davem@davemloft.net>,
kuznet@ms2.inr.ac.ru, pekkas@netcore.fi, jmorris@namei.org,
kaber@trash.net, netdev@vger.kernel.org,
YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Subject: Re: [PATCH] fragment: add fast path
Date: Mon, 14 Jun 2010 11:24:14 +0900 [thread overview]
Message-ID: <4C1592CE.5030501@linux-ipv6.org> (raw)
In-Reply-To: <AANLkTilf218t898mfK1jeIFtFBFE8OvAeoOIxQTnmEt3@mail.gmail.com>
NIC?
--yoshfuji
(2010/06/14 11:03), Changli Gao wrote:
> On Mon, Jun 14, 2010 at 9:18 AM, David Miller<davem@davemloft.net> wrote:
>> From: Changli Gao<xiaosuo@gmail.com>
>> Date: Mon, 14 Jun 2010 07:16:35 +0800
>>
>>> As the fragments are usually in order,
>>
>> In what universe does this happen "usually"?
>>
>> Linux has been outputting fragments in reverse order for more than 10
>> years.
>>
>
> I have tested next-next-2.6 and darwin, and found they are both send
> fragments in order:
>
> Darwin:
>
> Darwin localhost 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15
> 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386 i386 i386
>
> 09:53:26.891820 IP (tos 0x0, ttl 64, id 19628, offset 0, flags [+],
> proto UDP (17), length 1500) 10.13.3.10.52189> 10.13.150.1.8888: UDP,
> length 8192
> 09:53:26.892048 IP (tos 0x0, ttl 64, id 19628, offset 1480, flags [+],
> proto UDP (17), length 1500) 10.13.3.10> 10.13.150.1: udp
> 09:53:26.892229 IP (tos 0x0, ttl 64, id 19628, offset 2960, flags [+],
> proto UDP (17), length 1500) 10.13.3.10> 10.13.150.1: udp
> 09:53:26.892397 IP (tos 0x0, ttl 64, id 19628, offset 4440, flags [+],
> proto UDP (17), length 1500) 10.13.3.10> 10.13.150.1: udp
> 09:53:26.892529 IP (tos 0x0, ttl 64, id 19628, offset 5920, flags [+],
> proto UDP (17), length 1500) 10.13.3.10> 10.13.150.1: udp
> 09:53:26.892670 IP (tos 0x0, ttl 64, id 19628, offset 7400, flags
> [none], proto UDP (17), length 820) 10.13.3.10> 10.13.150.1: udp
>
> Linux:
>
> Linux localhost 2.6.35-rc1 #88 SMP Sun Jun 13 14:25:07 CST 2010 x86_64
> Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz GenuineIntel GNU/Linux
>
> 08:01:53.730902 IP (tos 0x0, ttl 64, id 1263, offset 0, flags [+],
> proto UDP (17), length 1500) 10.13.150.50.45295> 10.13.150.1.8888:
> UDP, length 8192
> 08:01:53.730955 IP (tos 0x0, ttl 64, id 1263, offset 1480, flags [+],
> proto UDP (17), length 1500) 10.13.150.50> 10.13.150.1: udp
> 08:01:53.731113 IP (tos 0x0, ttl 64, id 1263, offset 2960, flags [+],
> proto UDP (17), length 1500) 10.13.150.50> 10.13.150.1: udp
> 08:01:53.731139 IP (tos 0x0, ttl 64, id 1263, offset 4440, flags [+],
> proto UDP (17), length 1500) 10.13.150.50> 10.13.150.1: udp
> 08:01:53.731280 IP (tos 0x0, ttl 64, id 1263, offset 5920, flags [+],
> proto UDP (17), length 1500) 10.13.150.50> 10.13.150.1: udp
> 08:01:53.731306 IP (tos 0x0, ttl 64, id 1263, offset 7400, flags
> [none], proto UDP (17), length 820) 10.13.150.50> 10.13.150.1: udp
>
> Later I'll test Windows.
>
next prev parent reply other threads:[~2010-06-14 2:24 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-13 23:16 [PATCH] fragment: add fast path Changli Gao
2010-06-14 1:18 ` David Miller
2010-06-14 2:03 ` Changli Gao
2010-06-14 2:24 ` YOSHIFUJI Hideaki [this message]
2010-06-14 2:52 ` Changli Gao
2010-06-14 2:55 ` Changli Gao
2010-06-14 5:15 ` YOSHIFUJI Hideaki
2010-06-14 6:19 ` Mitchell Erblich
2010-06-14 5:35 ` Eric Dumazet
2010-06-14 5:59 ` Changli Gao
2010-06-14 7:04 ` Eric Dumazet
2010-06-14 10:15 ` Changli Gao
2010-06-14 6:40 ` Eric Dumazet
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