kern/152828: [em] poor performance on 8.1, 8.2-PRE

[Michael W. Lucas]

The following reply was made to PR kern/152828; it has been noted by GNATS.

From: "Michael W. Lucas" <mwlucas at blackhelicopters.org>
To: bug-followup at FreeBSD.org
Cc: rick at sloservers.com
Subject: Re: kern/152828: [em] poor performance on 8.1, 8.2-PRE
Date: Wed, 20 Jul 2011 11:49:08 -0400

 I'm seeing the exact same problem here as the original poster. Is
 anybody looking at this?
 
 Running FreeBSD 8.2-RELEASE-p1 amd64, from FreeNAS 8.0
 
 sysctls:
 dev.em.0.%desc: Intel(R) PRO/1000 Network Connection 7.1.9
 dev.em.0.%driver: em
 dev.em.0.%location: slot=0 function=0
 dev.em.0.%pnpinfo: vendor=0x8086 device=0x108b subvendor=0x8086 subdevice=0x0000 class=0x020000
 dev.em.0.%parent: pci1
 dev.em.0.nvm: -1
 dev.em.0.debug: -1
 ...
 
 ifconfig:
 em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
         options=219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MAGIC>
         ether 00:15:17:31:c8:fe
         inet 139.171.199.13 netmask 0xffffff00 broadcast 139.171.199.255
         media: Ethernet autoselect (1000baseT <full-duplex>)
         status: active
 
 dmesg | grep em0
 em0: <Intel(R) PRO/1000 Network Connection 7.1.9> port 0xbc00-0xbc1f mem 0xff6e0000-0xff6fffff irq 16 at device 0.0 on pci1
 em0: Using an MSI interrupt
 em0: [FILTER]
 em0: Ethernet address: 00:15:17:31:c8:fe
 
 
 
 
 -- 
 Michael W. Lucas 	
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 mwlucas at BlackHelicopters.org, Twitter @mwlauthor