On Sat, Feb 06, 2010 at 01:27:12PM +0100, Sebastiano Pomata wrote: > Il 06/02/10 03:55, Stuart Henderson ha scritto: > >> I really can understand this, for the sake of system portability and so > >> on. Anyway, I really hardly understand why, without touching any of the > >> default settings, download rate from every server would never overcome > >> the value of 400 kB/s. Is it all due to the tcp windows size? > > > > Yes. > > > > Thank you for the clear answer. Anyway, trying to act on tcp.sendspace > isn't affecting the upload capabilities of my OpenBSD server. > I tried downloading a file through httpd, via ftp but results are > still disappointing: 60-70 kbps between two boxes on the same switch. > > The box is going to become a webserver, could you please give me more > hints about tuning network performance? >
Check your links. This sounds like a full-duplex issue between switch and machines. On a LAN even with default tcp send/recvspace you should get easily get up to 200Mbps. -- :wq Claudio
