--Cites Results of Benchmark Test
VOD and IPTV technology provider, Kasenna, is trumpeting the results of a new benchmark test of its server technology. The test involved a cluster of 12 dual-processor servers based on the 64-bit Intel Xeon processor (3.4 GHz), and powered by Kasenna's MediaBase version 8.1 software, which enables hybrid RAM/Disk streaming. According to the company, the cluster achieved 135Gbps of streaming capacity, which equated to 57,600 MPEG-4 streams at 2.3Mbps per stream, and 36,000 MPEG-2 streams using 3.75Mbps encoding. Thus, if using MPEG-4 streams encoded at 2.3 Mbps, the cluster could power a half-million subscriber deployment from a single video head office (VHO), the company says.
According to Kasenna, the benchmark was carried out under real-world demand conditions, using actual traffic from a VOD deployment and various mainstream components, such as loosely coupled (i.e. Web-farm style) Linux servers, standard file systems, and standard Gigabit Ethernet interconnect technologies for intra-server interconnects. The company says that its Stream Clustering technology, which incorporates various different algorithms for pre-caching, hot-spot measurements, load averaging and request arrival predictions, guaranteed the load balancing among the cluster. The benchmark was achieved using standard off-the-shelf server hardware: "While other IPTV solution vendors focus on specialized hardware designs or very high server counts when attempting to deliver metro-class performance, Kasenna's vision has always been to use software intelligence and a distributed architecture to enable a high-performance, more cost-effective, and scalable solution," Kasenna co-founder and CTO, Satish Menon, said in a prepared statement. "This new benchmark is a testament of the validity of that vision."
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