856d7ba7ed
For performance reasons, this patch uses 2 VIC RQs per RQ presented to DPDK. The VIC requires that each descriptor be marked as either a start of packet (SOP) descriptor or a non-SOP descriptor. A one RQ solution requires skipping descriptors when receiving small packets and results in bad performance when receiving many small packets. The 2 RQ solution makes use of the VIC feature that allows a receive on primary queue to 'spill over' into another queue if the receive is too large to fit in the buffer assigned to the descriptor on the primary queue. This means that there is no skipping of descriptors when receiving small packets and results in much better performance. Signed-off-by: Nelson Escobar <neescoba@cisco.com> Reviewed-by: John Daley <johndale@cisco.com>
DPDK is a set of libraries and drivers for fast packet processing. It supports many processor architectures and both FreeBSD and Linux. The DPDK uses the Open Source BSD license for the core libraries and drivers. The kernel components are GPLv2 licensed. Please check the doc directory for release notes, API documentation, and sample application information. For questions and usage discussions, subscribe to: users@dpdk.org Report bugs and issues to the development mailing list: dev@dpdk.org