Re: ipw2200 and tcp tweaks
Zhu Yi <[email protected]>
| Newsgroups | gmane.linux.drivers.ipw2100.devel |
|---|---|
| Organization | Intel Corp. |
| Message-ID | <[email protected]> |
On Thu, 2006-11-23 at 21:50 +0000, Maxim Yegorushkin wrote: > Is it a good idea to enable the following tcp options when using ipw2200 driver? I'm not a TCP expert so I cannot answer you. But the question should be modified from ipw2200 driver to all WLAN devices, since the driver implementation doesn't affect that much. The wireless MAC uses CSMA/CA (positive ack normally) and latency is longer comparing with ethernet. I'd suggest you raise this question to [email protected]. > # echo 1 > /proc/sys/net/ipv4/tcp_frto > # echo 1 > /proc/sys/net/ipv4/tcp_low_latency > > man tcp(7) > > tcp_frto (Boolean; default: disabled) > Enables F-RTO, an enhanced recovery algorithm for TCP retrans- > mission timeouts. It is particularly beneficial in wireless > environments where packet loss is typically due to random radio > interference rather than intermediate router congestion. > > tcp_low_latency (Boolean; default: disabled) > If enabled, the TCP stack makes decisions that prefer lower > latency as opposed to higher throughput. It this option is dis- > abled, then higher throughput is preferred. An example of an > application where this default should be changed would be a > Beowulf compute cluster. > > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > ipw2100-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ipw2100-devel ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV