On Tue, Apr 21, 2015 at 08:35:21PM +1000, jb wrote: > As I understand it (I thought) SO_SNDBUF and SO_RCVBUF are socket buffers > for the application layer, they do not change the TCP window size either > send or receive.
I haven't gone into the code and checked, but from practical experience I think you're wrong. I've certainly seen positive effects (and verified with tcpdump) from reducing SO_SNDBUF on a server that should have no problems at all sending data really fast to the kernel. Then again, this kind of manual tuning trickery got obsolete for me the moment sch_fq became available. /* Steinar */ -- Homepage: http://www.sesse.net/ _______________________________________________ Bloat mailing list [email protected] https://lists.bufferbloat.net/listinfo/bloat
