Correction #11127
closed
Add Documentation on PPPoE Single Queue Limitations
100%
Description
A concern was raised that we don't have any notes that PPPoE can cause throughput bottlenecks on appliances because of the fact that PPPoE is limited to a single queue for packet processing, which can have detrimental effects.
We have information here, but nothing explicitly stating that this issue is across all appliances:
https://docs.netgate.com/pfsense/en/latest/hardware/tune.html#pppoe-with-multi-queue-nics
Additionally, the workaround there only works for Intel NICs, but it is not mentioned. Applying that patch to ARM-based systems or non-Intel based NICs will not improve speeds.
Updated by Jim Pingle over 3 years ago
- Status changed from New to Resolved
- % Done changed from 0 to 100
I added a warning to the PPPoE config section in the docs, and noted the affected hardware in the tuning doc.
https://gitlab.netgate.com/docs/pfSense-book/-/commit/45ad38b0e86e52d63964a79d69317445a074d089
https://docs.netgate.com/pfsense/en/latest/hardware/tune.html#pppoe-with-multi-queue-nics
https://docs.netgate.com/pfsense/en/latest/interfaces/ppp.html#pppoe-point-to-point-protocol-over-ethernet
The Intel/igb workaround from the Redmine issue and/or FreeBSD PR is not mentioned directly in the docs so it doesn't need addressed there. The workaround in the docs is general, not specific to any one type of hardware.