Cap on network speed in CURRENT?
Luke
luked at pobox.com
Tue Jun 1 15:38:26 PDT 2004
I've got a 100Mbps LAN with ethernet cards that should be capable of using
it, yet the highest transfer rates I seem to be able to get out of my
FreeBSD box are 260KB/s receiving and 341KB/s sending with around 200KB/s
being more normal.
I realize that there are hundreds of factors that could be influencing
this, but I came across this recent article that made me wonder if this is
some kind of hardcoded limit:
http://www.freebsd.org/news/status/report-jan-2004-feb-2004.html#Automatic-sizing-of-TCP-send-buffers
Is this article saying that my network speed is limited by a small
static TCP buffer size? If so, is there some way that I can increase that
buffer size to improve performance? The primary function of this machine
is to move large amounts of data across my network, so I'm willing to
experiment with increasing the buffer size if it's not too difficult.
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