Public bug reported: # 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 connectionnet.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
** Affects: gnome-system-monitor (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-system-monitor in Ubuntu. https://bugs.launchpad.net/bugs/909811 Title: Internet Connection speed very slow edit sysctl.conf required Status in “gnome-system-monitor” package in Ubuntu: New Bug description: # 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 connectionnet.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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-system-monitor/+bug/909811/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp