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[Bug 909811] [NEW] Internet Connection speed very slow edit sysctl.conf required

 

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

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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

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https://bugs.launchpad.net/ubuntu/+source/gnome-system-monitor/+bug/909811/+subscriptions


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