NVIDIA Messaging Accelerator (VMA) Documentation Rev 9.8.60

NVIDIA Messaging Accelerator (VMA) Documentation Rev 9.8.60

You can download a PDF version of the full document here.


The NVIDIA® Messaging Accelerator (VMA) library accelerates latency-sensitive and throughput-demanding TCP and UDP socket-based applications by offloading traffic from the user-space directly to the network interface card (NIC) or Host Channel Adapter (HCA), without going through the kernel and the standard IP stack (kernel-bypass).

VMA leverages the following benefits:

  • Implements the legacy POSIX socket interface
  • Increases:

    • Throughput
    • Packets per Second (PPS)
    • Requests per Second (RPS)
  • Reduces:

    • Network latency
    • The magnitude of network latency spikes
    • Context switches and interrupts
    • Network congestion
    • Data copying and moving in unicast and multicast applications
  • Improves CPU utilization
  • Compatible with Ethernet

VMA can work on top of MLNX_OFED driver stack and on a lighter driver stack, MLNX_EN.

Intended Audience

  • Market data professionals
  • Messaging specialists
  • Software engineers and architects
  • Systems administrators tasked with installing/uninstalling/maintaining VMA
  • ISV partners who want to test/integrate their traffic-consuming/producing applications with VMA

Document Revision History

For the list of changes made to this document, refer to User Manual Revision History.

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