Xin LI wrote:
Hi David,
David Samms wrote:
After upgrading to 7.2 (amd64) some customers complained of very poor
bandwidth. Upon investigation all the effected customers were ATT DSL
clients located all over the USA, not in a single city, nor were other
ISPs effected. The server is a Supermicro with dual (quad core)
processors with a single Intel fxp network card on a 100mbit connection.
Could you please try if this would help:
sysctl net.inet.tcp.tso=0
Cheers,
- --
Xin LI <[email protected]> http://www.delphij.net/
FreeBSD - The Power to Serve!
Xin LI,
Thank you for your help.
Setting sysctl net.inet.tcp.tso=0 resolved the issue completely. What
does sysctl net.inet.tcp.tso=0 do? Where can I read more about the
option? I captured tcpdumps of a single file transfer to 7.1, 7.2 and
7.2 with sysctl net.inet.tcp.tso=0, but they are to large to attach to
this list. Let me know if you are interested in viewing the dump files.
Thanks again for your assistance!
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