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Intel X540-T1 10GigE NIC works, but extremely slow, high latency on Ubuntu 14.04 LTS

I have a new Intel X540-T1 network adapter. I installed the latest ixgbe-4.1.5 driver from Intel. The card is able to get an IP address from DHCP. However, viewing websites and installing packages with apt-get are extremely slow, and BitTorrent just doesn't connect. For example, I downloaded Webmin with apt-get to see if it could be of help. It took a few tries before apt-get was finally able to resolve the domain names, then it took a few minutes to download ~20 megs. However, normally a download like that would take a minute or so (I'm connected to a fast university LAN connection).

Any thoughts? Might some parameters for the ixgbe module help, and if so, which?

$ uname -a

Linux localhost 3.13.0-66-generic # 108-Ubuntu SMP Wed Oct 7 15:20:27 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

$ ifconfig p1p1

p1p1 Link encap:Ethernet HWaddr a0:36:9f:75:5c:ca

UP BROADCAST MULTICAST MTU:1500 Metric:1

RX packets:0 errors:0 dropped:0 overruns:0 frame:0

TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

$ ethtool -i p1p1

driver: ixgbe

version: 3.15.1-k

firmware-version: 0x8000037c

bus-info: 0000:01:00.0

supports-statistics: yes

supports-test: yes

supports-eeprom-access: yes

supports-register-dump: yes

supports-priv-flags: no

$ sudo lspci -vvnns 01:00.0

01:00.0 Ethernet controller [0200]: Intel Corporation Ethernet Controller 10-Gigabit X540-AT2 [8086:1528] (rev 01)

Subsystem: Intel Corporation Ethernet Converged Network Adapter X540-T1 [8086:0002]

Physical Slot: 2

Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+

Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR-

Latency: 0

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2 Replies
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Valued Contributor I
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Re: Intel X540-T1 10GigE NIC works, but extremely slow, high latency on Ubuntu 14.04 LTS

Hi RZak00,

Thanks for contacting Intel. We'll check on this.

Sincerely,

Sandy

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Valued Contributor I
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Re: Intel X540-T1 10GigE NIC works, but extremely slow, high latency on Ubuntu 14.04 LTS

Dear RZak00,

For your issue, we suggest to update your adapter's driver, you may download the latest driver here -

File name: ixgbe-4.1.5.tar.gz

Version: 4.1.5 (Latest)

Size: 0.4 MB

Website: https://downloadcenter.intel.com/download/14687/Network-Adapter-Driver-for-PCI-E-10-Gigabit-Network-... Download Network Adapter Driver for PCI-E* 10 Gigabit Network Connections under Linux*

Hope this help resolve the issue.

Sincerely,

Sandy

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