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How much can you improve network throughput with a high-end NIC?

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Old 04-10-2008
How much can you improve network throughput with a high-end NIC?
Thu, 10 Apr 2008 15:00:00 GMT
What sort of impact can you expect from switching a machine from the Gigabit Ethernet NIC that come on its motherboard to a higher-end Intel desktop NIC? I benchmarked two common gigabit NICs found on motherboards against two Intel PCIe desktop gigabit NICs, targeting the specific purpose of accessing an NFS share over the network. The short version: throughput for sequential read/write operations didn't improve much, but latency was much better, allowing anything that needs a network round trip, like create, delete, and seek, to work much faster.


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LEARN ABOUT BSD

gettable

GETTABLE(8)						      System Manager's Manual						       GETTABLE(8)

NAME

       gettable - get NIC format host tables from a host

SYNOPSIS

       /usr/sbin/gettable [ -v ] host [ outfile ]

DESCRIPTION

       Gettable  is a simple program used to obtain the NIC standard host tables from a ``nicname'' server.  The indicated host is queried for the
       tables.	The tables, if retrieved, are placed in the file outfile or by default, hosts.txt.

       The -v option will get just the version number instead of the complete host table and put the output in the file  outfile  or  by  default,
       hosts.ver.

       Gettable  operates  by opening a TCP connection to the port indicated in the service specification for ``nicname''.  A request is then made
       for ``ALL'' names and the resultant information is placed in the output file.

       Gettable is best used in conjunction with the htable(8) program which converts the NIC standard file format to that  used  by  the  network
       library lookup routines.

SEE ALSO

       intro(3N), htable(8), named(8)

BUGS

       If the name-domain system provided network name mapping well as host name mapping, gettable would no longer be needed.

4.2 Berkeley Distribution					 November 17, 1996						       GETTABLE(8)