View source for Tuning network performance adjusting kernel parameters

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 [https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/5/html/Tuning_and_Optimizing_Red_Hat_Enterprise_Linux_for_Oracle_9i_and_10g_Databases/chap-Oracle_9i_and_10g_Tuning_Guide-Setting_Shared_Memory.html].

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