Chelsio Communications, a leading provider of 10Gb Ethernet Unified Wire Adapters, ASICs and Unified Storage software solutions, today announced a media streaming enhancement to its T4 Unified Wire adapters targeted at high performance content delivery applications. The Chelsio StreamEngin adds video segmentation offload and per-stream rate limiting functionality to the TCP and UDP offload capabilities of the T4 Unified Wire adapters to significantly reduce CPU utilization, increase video and content delivery capacity and improve service quality.
-- Video Segmentation Offload --
Tailored for video content, the StreamEngine segmentation offload technology moves the processing required to packetize video data and control its transmission rate from the server to the network adapter. Video Segmentation Offload (VSO) increases performance and dramatically reduces CPU overhead, allowing significantly higher capacity using the same server hardware. Without VSO support, video server software needs to packetize payload into frames, process each frame individually through the network stack and schedule individual frame transmission, resulting in millions of system calls and packet traversal through all protocol layers in the operating system to the network adapter.
-- Rate Shaping --
Rate Shaping within the StreamEngine allows Content Delivery Networks/Video On Demand providers to avoid receive buffer overflows, smooth out network traffic, and enforce Service Level Agreements (SLAs). Without dedicated hardware-based rate shaping or limiting support, the video server must perform rate limiting in software, a CPU intensive task that can be prohibitive at 10Gb and higher rates.
READ StreamEngine Product Brief : http://goo.gl/IEqyz
Via Nicolas Weil