Download speed issue in Xen VPS

For fixing download speed issue in Xen VPS. Make following changes in the vps.

Edit the /etc/sysctl.conf file.

root@amaziah [~]# vi /etc/sysctl.conf

And then add the following lines to the end of the file.

net.core.rmem_max=16777216

net.core.wmem_max=16777216

net.ipv4.tcp_rmem=4096 87380 16777216

net.ipv4.tcp_wmem=4096 65536 16777216

 Now for the changes to take effect, either reboot the vps or issue the following command.

root@amaziah [~]# sysctl -p