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Slow RX with X9DRFF and Intel Corporation 82574L
I was looking around the web for possible solutions but there are seems to be none.
Here is a case:
Intel Corporation 82574L on board with Supermicro X9DRFF mobo.
TX speed is rock solid. Server is sitting on 1gbit shared and we are getting 200Mb/sec outgoing. But as for RX incoming it does not get any higher than 5-7mbit. Checked cables and switches - all the same, changed cables and switches - all the same, slow RX, slow incoming.
2.7 Bios, e100e driver, version 2.5.4
I have seen threads about complete network connection drops with those nics but nothing about slow connectivity.
Did any of you guys experience this with any kernels?
In my case i have 2.6.32-042stab081.5 openvz kernel running about 50 vps on this server right now.
Thank you for your answers in advance.
What is the output of ethtool and ifconfig?
Nothing major but I see now that ethtool -i shows driver version 2.1.4-k instead of 2.5.4
2.5.4 in the actual one I compiled into kernel. Looks like reboot was not enough to dump old nic driver.
description: Intel(R) PRO/1000 Network Driver
# ethtool -S eth0
# ethtool -i eth0
eth0 Link encap:Ethernet HWaddr 00:25:90:83:24:26
inet6 addr: fe80::225:90ff:fe83:2426/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:292282809 errors:0 dropped:0 overruns:0 frame:0
TX packets:357864533 errors:0 dropped:0 overruns:0 carrier:0
RX bytes:66558018735 (61.9 GiB) TX bytes:263184418525 (245.1 GiB)
It's more likely an upstream issue. This is a 'tried and trued' NIC used on countless boards and is known to be very stable.
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Run some speed tests with another server connected in the same switch and same network/vlan.
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Would agree with this. Unless there are hardware faults it's an upstream problem. Who is providing the bandwidth? Run some traces and see if the speed is the same to all locations.
Originally Posted by
You said it's shated gigabit. Check if there's congestion on rx in the network.
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