> And more directly for you, if they're not harming your performance, I > wouldn't do *anything*. They do serve a purpose. >
When benchmarking proxies we find the MSL creates a resource problem for us with Web Polygraph (http://polygraph.ircache.net/). I must admit that we have never measured this as a performance issue. However I believe that Pei Cao's group has and found it to be one due to the way sockets were maintained in the kernel. I will look for a reference for their work. I think that one of her students submitted a patch to correct this issue in FreeBSD, so it may not be a problem in 3.1/3.2. If you do want to hack the MSL : /usr/src/sys/netinet/tcp_timer.h #define TCPTV_MSL ( 3*PR_SLOWHZ) /* max seg lifetime (hah!) */ That will make the MSL 3 seconds. glenn To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-hackers" in the body of the message
