Author Topic: Tweak internet connection  (Read 4547 times)

ghostdog

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on: December 29, 2010, 07:40:34 PM
Hi there
Ciao tutti

This tweak is , if you use IDSL connection, this will maximalise you Bandwidth  and Internet speed.


Open terminal and paste:     sudo gedit /etc/sysctl.conf

Paste this code at the end of the file:


# increase TCP max buffer size setable using setsockopt()
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
# increase Linux autotuning TCP buffer limits
# min, default, and max number of bytes to use
# set max to at least 4MB, or higher if you use very high BDP paths
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
# don't cache ssthresh from previous connection
net.ipv4.tcp_no_metrics_save = 1
net.ipv4.tcp_moderate_rcvbuf = 1
# recommended to increase this for 1000 BT or higher
net.core.netdev_max_backlog = 2500
# for 10 GigE, use this, uncomment below
# net.core.netdev_max_backlog = 30000
# Turn off timestamps if you're on a gigabit or very busy network
# Having it off is one less thing the IP stack needs to work on
#net.ipv4.tcp_timestamps = 0
# disable tcp selective acknowledgements.
net.ipv4.tcp_sack = 0
#enable window scaling
net.ipv4.tcp_window_scaling = 1

Save and exit.

In terminal type this :  sudo sysctl -p


Reboot and you should be ok.

Test your speed:   


%% You can uninstall everything by > sudo gedit /etc/sysctl.conf    and delete the code.

Enjoy ;)



clshack

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Reply #1 on: December 30, 2010, 11:48:01 AM
Grazie per la condivisione, ho una domanda ..io su internet avevo trovato questi valori:

net.core.netdev_max_backlog=

2.000 per reti wireless;
4000 per Ethernet;
5.000 per una GigaBit Ethernet;
30.000 per connessioni 10 GB;

Confermi ?



ghostdog

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Reply #2 on: December 30, 2010, 02:35:57 PM
Si, come vedi ho fissato i valori tra 2500 e 30000 , il tweak non e' mirato a cambiare i valori nel router, ma modifica quelle stabilite di default nelle configurazioni del wifi e ethernet impostate nel OS.



Diavolo_Rosso

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Reply #3 on: December 31, 2010, 03:16:28 AM
Domanda da newbie (come al solito).

Le configurazioni sono utili solo per le connessioni IDSL perchè in qualche modo centra il tipo di allacciamento o sono applicabili a tutti i tipi di DSL?



ghostdog

  • Guest
Reply #4 on: December 31, 2010, 01:07:34 PM
ciao

si e' applicabile su ogni tipo di adsl, questo tweak altera solo i parametri registrati per default nel OS.