Date: Thu, 28 Apr 2011 12:19:38 -0400 From: Mike Tancsa <mike@sentex.net> To: Adam Stylinski <kungfujesus06@gmail.com> Cc: freebsd-net@freebsd.org Subject: Re: em0 performance subpar Message-ID: <4DB9939A.3070307@sentex.net> In-Reply-To: <20110428153539.GC19362@ossumpossum.geop.uc.edu> References: <20110428072946.GA11391@zephyr.adamsnet> <4DB965D8.7090906@sentex.net> <20110428132922.GC2800@ossumpossum.geop.uc.edu> <4DB96DDD.4070801@sentex.net> <20110428141500.GE2800@ossumpossum.geop.uc.edu> <4DB97A07.2020606@sentex.net> <20110428150110.GG2800@ossumpossum.geop.uc.edu> <4DB985FC.4000704@sentex.net> <20110428153539.GC19362@ossumpossum.geop.uc.edu>
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On 4/28/2011 11:35 AM, Adam Stylinski wrote:
>
> And the rate output of netblast (using as suggested the parameters above):
> 119091
>
> This is about 454mbps. Still way slower than it ought to be.
>
Yes, it should do way better than that. I just tried on a couple of
8.2R boxes, E5320 @ 1.86GHz (1866.74-MHz K8-class CPU). Different em nic.
Sending side
netblast 192.168.5.110 500 450 6
start: 1304007166.789433976
finish: 1304007172.789605227
send calls: 2829340
send errors: 1374103
approx send rate: 242539
approx error rate: 0
em0: <Intel(R) PRO/1000 Network Connection 7.1.9> port 0x2000-0x201f mem
0xd8a00000-0xd8a1ffff irq 18 at device 0.0 on pci4
em0: Using an MSI interrupt
em0: [FILTER]
em0: Ethernet address: 00:30:48:33:53:cc
The receiving side sees
em0
Kbps in Kbps out
0.00 0.52
499822.2 0.00
931129.2 0.00
931126.8 0.00
931166.7 0.00
931064.4 0.00
931219.5 0.00
432451.5 0.00
0.47 0.00
--
-------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
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