On 14.09.2010 12:12, Ian FREISLICH wrote:
Fabien Thomas wrote:
Great,
This will maybe kill the long time debate about "my loopback is slow vs
linux"
To have the best of both world what about a socket option to
enable/disable fusing:
can be useful when you need to see some connection "packetized".
To chime in, I had a "slow" loopback issue earlier this week. It
turned out the problem was caused by delayed ack on the loopback
where the client didn't need to transmit any data to the server.
It delayed each packet from the server by 100ms. After patching
the server to:
setsockopt(desc->accept_fd, IPPROTO_TCP, TCP_NODELAY,&x, sizeof(x));
It's now faster than on linux.
Perhaps this is one of the causes of "my loopback is slow vs linux".
FWIW, I couldn't find a way to turn off dealyed_ack on just loopback
interface.
Good point. You can't at the moment but it certainly makes a lot
of sense. Let me see what I can come up with.
--
Andre
_______________________________________________
freebsd-net@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
