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Data speed increase (wifi/3g/4g)

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MДЯCЦSДИT

Inactive Recognized Developer
Nov 21, 2010
6,563
4,616
This is a known linux tweak and I have tested it on the epic and there seems to be mixed results. BTW, YMMV so don't go blaming me for messing up your phone... The zip is made for my rom but will most likely work on all others (even AOSP).
Open up /system/etc/sysctl.conf (make it if it isn't there)

Add the following...

Code:
net.ipv4.tcp_ecn=0
net.ipv4.route.flush = 1
net.ipv4.tcp_rfc1337 = 1
net.ipv4.ip_no_pmtu_disc = 0
net.ipv4.tcp_sack = 1
net.ipv4.tcp_fack = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_rmem = 4096 39000 187000
net.ipv4.tcp_wmem = 4096 39000 187000
net.ipv4.tcp_mem = 187000 187000 187000
net.ipv4.tcp_no_metrics_save = 1
net.ipv4.tcp_moderate_rcvbuf = 1

Flashable zip if you don't wanna make it yourself: acs forums are directing to the wrong download...
 
Last edited:

socos25

Senior Member
Nov 8, 2010
1,817
502
Earth
I can confirm I pushed it into system\etc and there was a file already there by that name. I didn't compare them.

As far as speeds go I can definately see an improvement. Lately it has been in the 300k on average. Tonight I clocked in at 848kbps down, 676 up, and it has stayed there repeatedly.

---------- Post added at 12:44 AM ---------- Previous post was at 12:42 AM ----------

Funny thing is I didn't add the above like he said. I just replaced the file with that. I'm probably lucky it is still working.
 
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socos25

Senior Member
Nov 8, 2010
1,817
502
Earth
Okay, I added back what was in the file before and everything seems good. Speeds are better than they have been, but who knows.

Just wanted to add that my last three speedtests have avergage over 1200kbps down 500kbps up. I never get those kinds of speeds at work, so I think this is definately an improvement. But with anything time will tell.
 
Last edited:

toadlife

Inactive Recognized Developer
Aug 19, 2008
1,208
1,012
Lemoore, CA
Wow.

I'm always skeptical of these kind of tweaks, but..

Pre-tweak download speeds: 590,290,413
Post-Tweak download speeds: 941,684,1012,741

It could still be be coincidence though.

I'll continue to run tests throughout the day and see how it goes.
 

MikeyLee

Senior Member
Jul 20, 2010
3,968
632
Phoenix
Wow.

I'm always skeptical of these kind of tweaks, but..

Pre-tweak download speeds: 590,290,413
Post-Tweak download speeds: 941,684,1012,741

It could still be be coincidence though.

I'll continue to run tests throughout the day and see how it goes.

I dont have this file in my system. How do you create and push this? Is it a simple text file? ???
 

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