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Any Linux tweaking......?
Posted: Mon Jan 05, 2004 3:41 pm
by welz400
Hi,
just wondered if there was any posts or forum for tweaking linux.
Oh, I see the analyser page is down just now, it comes back with an eror message on all three of my systems.
Thanks
Posted: Mon Jan 05, 2004 7:38 pm
by j79zlr
AS far as I have experienced, Linux is very good at self tuning. There are some tweaks that can be applied, but none have given me any noticeable increase.
Most of the settings are in /proc/sys/net/ipv4/
The only thing I do is turn timestamps off
echo 0 > /proc/sys/net/ipv4/tcp_timestamps
Posted: Tue Jan 06, 2004 12:50 pm
by welz400
Ok thanks for that.
I have found that LM9.0, without a MTU setting, due to a new onboard lan chip/card/whatever, attained a download speed of 53.6Kb/sec, but now with an MTU setting I get 56KB/sec, whereas with my MSwindows box I get 58KB/sec at best.
I will check timestamps setting tho'
Posted: Tue Jan 06, 2004 3:55 pm
by welz400
Well I just turned off the timestamps, and since I did, I have trouble getting to some of the pages on this site. It seems too much of a coincidence for that tho'
Posted: Fri Jan 09, 2004 3:15 pm
by Stu
You want timestamps on, read RFC 1323 "TCP Extensions for High Performance". I put up a page on my site that goes over tweaking Linux on broadband (
http://www.santa-li.com/linuxonbb.html ) a while ago, and mentioned it in this forum several times (you should do a search before posting a question, in case it has already been asked and answered). I haven't updated it for the 2.6 kernel yet, but the only thing I'm going to do is mention that the 2.4 tweaks apply to the 2.6 kernel as well--provided you compile in support for /proc. I am still figuring out how to set it up in /sys, but when I do I'll put it on there as well.