In addition, eXtremeDB Financial Edition's speed managing data in AgigA Tech's NVDIMM proved equal to using conventional memory (DRAM). In contrast, alternative
McObject has published the results of its benchmark tests using eXtremeDB Financial Edition and AgigA Tech's NVDIMM in a report available for free download at http://financial.mcobject.com/imds-nvdimm-paper.
In-memory database systems store records in main memory, leveraging DRAM's superior read/write speed while eliminating the file I/O, cache management, data transfer and other overhead inherent in traditional database management systems (DBMSs) that incorporate persistent storage. As a result, IMDSs perform an order of magnitude faster than their disk-based counterparts.
But some applications require a higher level of data durability than DRAM can provide. As a solution,
One existing type of non-volatile RAM uses a battery to maintain data in memory during a power failure. However, disadvantages of this "battery-backed RAM" include restrictive temperature requirements, leakage risk, limited storage time, long re-charge cycles, finite battery shelf life, and overall high cost-of-ownership.
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