Push Technology, using their open source benchmark suite allowing the performance results from the study to be easily reproduced, undertook the benchmark to compare the performance and latency differences of Java Virtual Machines (JVMs). The benchmark was run on Diffusion software on two multicore Intel servers running the CentOS operating system, connected by high-performance Solarflare SFN6122F Dual-Port 10GbE SFP+ Onload Server Adapter.
Diffusion itself is a real-time stream oriented distribution technology that intelligently batches, fragments and conflates messages to optimize distribution whilst guaranteeing the currency, and timeliness of delivery. Push Technology's Diffusion servers are typically deployed at or behind the edge of private networks where services are exposed to public networks and real-time data feeds, with multiple instances running behind a load balancer.
Comparative latency graphs show that throughout the Diffusion tests Zing's response time was consistently and favorably flat -- exhibiting stable, consistent and delay-free operation with a measured worst case peak latency of 1.25 milliseconds - while simultaneously supporting the full load of 15,000 simultaneous connections. By contrast, running with the legacy JVM showed peak pauses as high as 70-80 msec, with significant stalls ranging into the 10s of milliseconds occurring as early as the 99th percentile. In contrast to Zing's ability to maintain a flat latency curve at all loads, the alternative JVM was unable to avoid these frequent and high magnitude stalls and peaks even when carrying only 5,000 (3X fewer) live connections.
Solarflare VP of Solutions Marketing
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