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diff --git a/docs/vpp/configuration/dataplane/system.rst b/docs/vpp/configuration/dataplane/system.rst new file mode 100644 index 00000000..ff8bfb61 --- /dev/null +++ b/docs/vpp/configuration/dataplane/system.rst @@ -0,0 +1,54 @@ +:lastproofread: 2025-09-04 + +.. _vpp_config_system: + +.. include:: /_include/need_improvement.txt + +########################## +VyOS Configuration for VPP +########################## + +.. _vpp_config_hugepages: + +Hugepages +========= +VPP utilizes hugepages for efficient memory management. Hugepages are larger memory pages that reduce the overhead of page management and improve performance for applications that require large amounts of memory. + +Hugepages can be configured in VyOS using the following commands: + +.. warning:: + + Changes to hugepage settings require a system reboot to take effect. + + Hugepages must be enabled before VPP configuration is applied. + +To enable hugepages: + +.. cfgcmd:: set system option kernel memory hugepage-size <size> hugepage-count '<count>' + +Enables hugepages with the specified size and count. The size can be either 2MB or 1GB, and the count specifies the number of hugepages to allocate. + +If your system has multiple NUMA nodes, the total amount of hugepages will be divided equally among them. + +Resources Limits +================ + +.. note:: + + By default, system will calculate and set the recommended values for resource limits. Avoid tuning these values if you are not sure what you are doing. + +During operations VPP utilizes a significant amount of system resources, especially memory. There are two main settings that may to be adjusted to ensure VPP runs smoothly: + +Maximum number of memory map areas a process may have: + +.. cfgcmd:: set system option resource-limits max-map-count <value> + +Maximum shared memory segment size: + +.. cfgcmd:: set system option resource-limits shmmax <value> + +Both settings are automatically calculated based on configured hugepages. + +Kernel Tuning +============= + |