Tuning network performance adjusting kernel parameters
From Tech-Wiki
You can achieve a higher network throughput changing some default parameters that may prevent your system to deliver more packets per second or to buffer properly.
Before you apply this setting below, read additional sources [1].
The parameters that can be set in /etc/sysctl.conf are:
kernel.shmmax=268435456 # for 32-bit kernel.shmmax=1073741824 # for 64-bit kernel.msgmni=1024 fs.file-max=8192 kernel.sem=”250 32000 32 1024