Tweaks to increase throughput and internet speed

ravisghosh · 2008-03-17 13:40:29

My isp says my broadband speed is 2 mbps and I can verify the same with speedtest.net using the nearest server. however, if I use other servers, the results give me a speed of 500 kbps and that is exactly my throughput (actual speed). There are various sites and softwares which describe and do the necessary tweaking to increase the throughput, but unfortunately they are all window based and mostly registry tweaking. I could'nt find any article describing tweaks to increase throughput for linux and novice people like me can hardly go any further without describing articles.

Could someone please put some links to articles or some tweaks to increase throughput/broadband speed.

Last edited by ravisghosh (2008-03-17 13:41:21)

brebs · 2008-03-17 13:51:07

Try wiki.

finferflu · 2008-03-17 15:01:20

Hmm that sounds interesting. I have added those lines as indicated in the guide. I still have to see how big is the improvement. Too bad the database is up to date already

ravisghosh · 2008-03-18 02:48:49

finferflu wrote:

Hmm that sounds interesting. I have added those lines as indicated in the guide. I still have to see how big is the improvement. Too bad the database is up to date already

Did that help???

I tried pdnsd, but it seems its not helping me reduce dns lookup time. I've posted it here:
http://bbs.archlinux.org/viewtopic.php?id=44885

theringmaster · 2008-03-18 02:51:58

opendns is also a speedy dns alternative.

freakcode · 2008-03-18 04:51:36

+1 for OpenDNS.

It's a lot faster than my ISP's own DNS. I configured my router to lookup to OpenDNS instead.

Also, when a site isn't loading, you get a nice page with a google related search, instead of a generic error message.

raj7095 · 2010-04-26 01:11:02

one more thing that might increase the speed a little.
type this command in terminal as root: ifconfig eth0 [or whatever interface it is] mtu [your maximum mtu]
you have to find your max mtu manually. first start typing in the numbers in thousands then, find the highest number in hundreds. for example, my highest mtu is 7200. I started from 9000 and then went down by thousands the highest valid mtu i got was 7000, so i increased the number by hundreds, so i got the numbers valid up to 7200, not anything beyond.

pyther · 2010-04-26 14:15:27

raj7095 wrote:

one more thing that might increase the speed a little.
type this command in terminal as root: ifconfig eth0 [or whatever interface it is] mtu [your maximum mtu]
you have to find your max mtu manually. first start typing in the numbers in thousands then, find the highest number in hundreds. for example, my highest mtu is 7200. I started from 9000 and then went down by thousands the highest valid mtu i got was 7000, so i increased the number by hundreds, so i got the numbers valid up to 7200, not anything beyond.

I'm sorry but that is the worst advice you can give. Do you know what the mtu stands for? Unless all your networking equipment supports jumbo frames you are actually decreasing performance because the router than has to break up your 7200 byte packet into 5 smaller 1500 bytes packets.

Last edited by pyther (2010-04-26 14:15:59)

kokoko3k · 2010-04-26 14:51:28

to find the optimal mtu value, it is better to use:

ping -c 1  -M do -s #mtusize www.google.com

where mtusize is the mtu size you're trying with.
In my case. 1472 is the maximum:

# ping -c 1 -M do -s 1472 www.google.com
PING google.navigation.opendns.com (208.69.34.231) 1472(1500) bytes of data.
1480 bytes from google.navigation.opendns.com (208.69.34.231): icmp_seq=1 ttl=51 time=38.3 ms

--- google.navigation.opendns.com ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 38.318/38.318/38.318/0.000 ms

...because if i try with 1473, i get:

ping -c 1 -M do -s 1473 www.google.com
PING google.navigation.opendns.com (208.69.34.231) 1473(1501) bytes of data.
From 143.225.178.2 icmp_seq=1 Frag needed and DF set (mtu = 1500)

--- google.navigation.opendns.com ping statistics ---
0 packets transmitted, 0 received, +1 errors

(Packet has to be fragmented)

Hope it helps.

raj7095 · 2010-04-27 00:39:40

pyther wrote:

raj7095 wrote:
one more thing that might increase the speed a little.
type this command in terminal as root: ifconfig eth0 [or whatever interface it is] mtu [your maximum mtu]
you have to find your max mtu manually. first start typing in the numbers in thousands then, find the highest number in hundreds. for example, my highest mtu is 7200. I started from 9000 and then went down by thousands the highest valid mtu i got was 7000, so i increased the number by hundreds, so i got the numbers valid up to 7200, not anything beyond.
I'm sorry but that is the worst advice you can give. Do you know what the mtu stands for? Unless all your networking equipment supports jumbo frames you are actually decreasing performance because the router than has to break up your 7200 byte packet into 5 smaller 1500 bytes packets.

but i get higher download speed using this method. about 100 kb increase. although the latency time reduces a little. and no i dont know what mtu stands for. sorry for being a dumb ass. btw i dont have a router so i dont know what would happen if this was used on one.

Last edited by raj7095 (2010-04-27 00:40:21)

kokoko3k · 2010-04-27 07:31:07

You don't need to own a router for your packets to traverse one

lilsirecho · 2010-04-27 15:24:21

MTU: Maximum transmission unit...... in bytes .....for internet protocol.

jeeva7 · 2010-05-10 06:04:11

Use this link http://www.broadband.co.uk/help/speed-u … broadband/ to speed up your boardband speed....After that check your speed here http://www.ip-details.com/

Last edited by jeeva7 (2010-05-10 06:04:28)

Arch Linux

#1 2008-03-17 13:40:29

Tweaks to increase throughput and internet speed

#2 2008-03-17 13:51:07

Re: Tweaks to increase throughput and internet speed

#3 2008-03-17 15:01:20

Re: Tweaks to increase throughput and internet speed

#4 2008-03-18 02:48:49

Re: Tweaks to increase throughput and internet speed

#5 2008-03-18 02:51:58

Re: Tweaks to increase throughput and internet speed

#6 2008-03-18 04:51:36

Re: Tweaks to increase throughput and internet speed

#7 2010-04-26 01:11:02

Re: Tweaks to increase throughput and internet speed

#8 2010-04-26 14:15:27

Re: Tweaks to increase throughput and internet speed

#9 2010-04-26 14:51:28

Re: Tweaks to increase throughput and internet speed

#10 2010-04-27 00:39:40

Re: Tweaks to increase throughput and internet speed

#11 2010-04-27 07:31:07

Re: Tweaks to increase throughput and internet speed

#12 2010-04-27 15:24:21

Re: Tweaks to increase throughput and internet speed

#13 2010-05-10 06:04:11

Re: Tweaks to increase throughput and internet speed

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