STAC Report: RMDS with Chelsio 10GigE and Novell SLERT

Highest RMDS throughput with sub-millisecond latency reported to date: 800,000 updates/second STAC has just released another report on the performance of the Reuters Market Data System (RMDS) using Chelsio 10GigE NICs that perform TCP offload. This time, the platform was Novell SUSE Linux Enterprise Real Time running on HP c-Class blades. Chelsio Communications believes that its 10GigE TOE-enabled NICs increase Ethernet bandwidth and reduce Ethernet latency in market data environments, and this belief was supported by a previous STAC Report. Chelsio and HP therefore asked STAC to measure the performance of a market data stack using Chelsio 10 GigE NICs with other components STAC has tested before: the Reuters Market Data System (RMDS); SUSE Linux Enterprise Real Time (SLERT) and SUSE Linux Enterprise Server (SLES); and HP c-Class blade servers running Intel quad-core processors. This stack also used HP 10GigE switch modules. First, we performed the standard RMDS latency tests. Second, we examined the maximum P2PS Producer 50/50 throughput in a multiplexed configuration. Some of the key results were: - Highest RMDS throughput with sub-millisecond latency reported to date: o 800,000 updates per second o Mean latency was 58% lower, on average, than with SLES/GigE - Highest P2PS output reported to date in the “Producer 50/50” fanout test for a two-socket server: o 13.4 million updates per second achieved with SLERT/10GigE o 10.8 million updates per second achieved with SLERT/10GigE with 4 P2PS instances (a configuration used in some previous reports) - Reduced maximum latency values at higher update rates: o At rates over 200Kups, Chelsio/SLERT reduced maxima by an average of 47% vs. GigE/SLES - Standard deviation of latency in latency-optimized RMDS config was less than 0.5 milliseconds through 700Kups: o Chelsio/SLERT reduced standard deviation of latency by an average of 34% vs. GigE/SLES You can access the new report here.

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