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Test network performance, copying from the mem of one box, over the net to the mem of another

Terminal - Test network performance, copying from the mem of one box, over the net to the mem of another
dd if=/dev/zero bs=256M count=1 | nc [remoteIP] [remotePort] and on the other host nc -l port >/dev/null
2009-07-14 20:30:52
User: tkunz
Functions: dd host
0
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Test network performance, copying from the mem of one box, over the net to the mem of another

Note, the [remotePort] should be opened in the firewall first. First, start the destination box listening, then fire off the sending box. Data from the /dev/zero device in memory of the source machine is read out using dd, sent over the network with nc, and read back in from the other side of the network with nc, going to the /dev/null device. Essentially, it is a memory-network-memory copy operation, the output of dd will tell you how fast your network really is performing.

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Terminal - Alternatives

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Check negotiated ethernet segment speed:

sudo ethtool eth1
Comment by bwoodacre 200 weeks and 3 days ago

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