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Diffstat (limited to 'host/docs/dpdk.dox')
| -rw-r--r-- | host/docs/dpdk.dox | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/host/docs/dpdk.dox b/host/docs/dpdk.dox index 9359a22cd..564cfeaf6 100644 --- a/host/docs/dpdk.dox +++ b/host/docs/dpdk.dox @@ -6,8 +6,15 @@ Data Plane Development Kit (DPDK) is a set of libraries that allows network interface controller (NIC) drivers to use user space memory buffers to send and -receive data over a network. This allows us to eliminate context switching in -UHD's transport layer, which enables us to stream higher sample rates. +receive data over a network. These libraries underpin one of the network +transport options in UHD. + +In UHD, the DPDK-based transport will fork off I/O threads that implement the +network services, and these I/O threads will service the NICs on cores provided +in your configuration. The cores will be completely consumed by the I/O thread. +Together with DPDK's polling-mode drivers, this virtually eliminates context +switching in UHD's transport layer, which enables us to stream higher sample +rates. \section dpdk_setup DPDK Setup |