Changing Onload Control Plane Table Sizes - UG1586

Onload User Guide (UG1586)

Document ID
UG1586
Release Date
2025-11-03
Revision
1.31 English

The default sizes of the tables used by the Onload Control Plane are normally sufficient for the majority of applications. The table sizes can be changed, but creating larger tables might impact application performance.

The sizes of Onload Control Plane tables are set by parameters for the onload_cp_server process. These are listed in Parameters for onload_cp_server.

If non-default values are needed, the user should create a file in the /etc/modprobe.d directory. The file must have the .conf extension. The onload_cp_server parameters can be added to the file in a single line, space-separated, in the following format:

options onload cplane_server_params="--mac-max=512 --fwd-max=256"

Following changes Onload should be restarted using the reload command:

onload_tool reload

For the change to persist across reboots, update the initramfs. For example:

dracut -f