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Everspin’s MRAM-based nvNITRO NVMe card increases Apache Log4j performance by 9x with non-volatile circular buffering

by Xilinx Employee on ‎11-16-2017 12:36 PM (27,044 Views)


This week at SC17 in Denver, Everspin was showing some impressive performance numbers for the MRAM-based nvNITRO NVMe Accelerator Card that the company introduced earlier this year. As discussed in a previous Xcell Daily blog post, the nvNITRO NVMe Accelerator Card is based on the company’s non-volatile ST-MRAM chips and a Xilinx Kintex UltraScale KU060 FPGA implements the MRAM controller and the board’s PCIe Gen3 x8 host interface. (See “Everspin’s new MRAM-based nvNITRO NVMe card delivers Optane-crushing 1.46 million IOPS (4Kbyte, mixed 70/30 read/write).”)


The target application of interest at SC17 was high-frequency trading, where every microsecond you can shave off of system response times directly adds dollars to the bottom line, so the ROI on a product like the nvNITRO NVMe Accelerator Card that cuts transaction times is easy to calculate.




Everspin nvNITRO NVMe card.jpg 



Everspin MRAM-based nvNITRO NVMe Accelerator Card




It turns out that a common thread and one of the bottlenecks for high-frequency trading applications is the use of Apache Log4j event-logging utility. However, incoming packets arrive at a variable rate—the traffic is bursty—and the Log4j logging utility needs to keep up with the highest possible burst rates to ensure that every event is logged. Piping these events directly into SSD storage sets a low limit to the burst rate that a system can handle. Inserting an nvNITRO NVMe Accelerator Card as a circular buffer in series with the incoming event stream as shown below boosts Log4j performance by 9x.




Everspin nvNITRO Circular Buffer.jpg 




Proof of efficacy appears in the chart below, which shows the much lower latency and much better determinism provided by the nvNITRO card:




Everspin nvNITRO Latency Reduction.jpg 




One more thing of note: As you can see by one of the labels on the board in the photo above, Everspin’s nvNITRO card is now available as Smart Modular Technologies’ MRAM NVM Express Accelerator Card. Click here for more information.