Myricom: Extreme Performance Ethernet

Introduction

DBL™ for Linux and Windows™ is an optional, user-level, software interface for accelerating applications whose performance depends on network latency. Examples of applications that will benefit from DBL include algorithmic financial trading, VoIP, online gaming engines, and others where reduced network latency is beneficial. DBL software with Myri-10G 10-Gigabit Ethernet Network Adapters leverages user-level, kernel-bypass, messaging techniques originally developed for high performance computing (HPC) applications, and applies them to IP communication over Ethernet in a multicast and/or unicast environment. DBL is interoperable and wirecompatible with all standard TCP and UDP implementations.

Unlike IP communication through the host operating system, which allows the full set of IP networking services to potentially hundreds of user application threads, but at the cost of latency in the operating-system protocol stack, DBL takes advantage of kernel-bypass firmware in Myri-10G Network Adapters to allow high-priority user threads to send and receive IP frames directly. The typical user-level read latency (delay from packet arrival at the adapter network port until it is available to the application) of DBL on modern hosts is about 1.5us and the half-round-trip pingpong latency is about 3.5us.

Documentation

Myricom DBL™ -- Financial Trading Software

The DBL API documentation is available in HTML format in the software distribution.

The DBL Installation and User Guide is available below in the Download section of this page.

Both documents are only available to DBL license holders.

In addition, the DBL FAQ may be found here: DBL in the Documentation Knowledge Base

Supported Hardware

Myri-10G 8A network adapters are NOT supported by the DBL™ software.

Myri-10G 8B or 8C network adapters are required for the DBL™ software installation.

Download

Access to the DBL software is limited to license holders.

Login at left to access your products or to request new access.

If you have purchased a DBL license in the past, contact Myricom Technical Support ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it ) to receive a login and software licenses.

30-day evaluation licenses are available for DBL. Send a request to Myricom Technical Support ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it )

To purchase a permanent software license, please contact the vendor from which you purchased your network adapters, or the Myricom Sales team at This e-mail address is being protected from spambots. You need JavaScript enabled to view it .