Using NVDIMM as Storage, In-Memory Database Gains Durability & Keeps High
ISSAQUAH, WA -- (Marketwired) -- 10/08/13 -- In the industry's first
test of in-memory database system (IMDS) speed and recoverability
using the emerging Non-Volatile DIMM (NVDIMM) technology, McObject(R)
and AgigA Tech, a subsidiary of Cypress Semiconductor Corp. (NASDAQ:
CY), announced McObject has successfully benchmarked its eXtremeDB(R)
Financial Edition IMDS using AgigA Tech's AGIGARAM(R) NVDIMM as main
memory storage. The tests included "pulling the plug" mid-execution,
which confirmed the AGIGARAM product's ability to save data
persistently in the event of system failure, and to facilitate
In addition, eXtremeDB Financial Edition's speed managing data in
AgigA Tech's NVDIMM proved equal to using conventional memory (DRAM).
In contrast, alternative IMDS mechanisms that safeguard data from
system failure, such as transaction logging, introduce latency. By
delivering peak performance along with full data durability, the
combination of the eXtremeDB Financial Edition in-memory database
system and the AGIGARAM NVDIMM opens the door to a new and powerful
approach to managing data in demanding capital markets applications
such as algorithmic trading, order matching, in-memory analytics and
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
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, IMDS vendors offer transaction
logging, which keeps a record of changes to the database that can be
used to recover after a crash. But this logging requires writes to
persistent storage (such as a solid state drive or hard disk), which
adds some latency. IMDSs with transaction logging still outperform
traditional on-disk DBMSs (by up to 23x, depending on storage devices
used, according to McObject's earlier published findings) but they
lag "pure" in-memory database systems deployed in DRAM.
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.
AgigA Tech was formed to develop technology that would overcome
battery-backed RAM's limitations. Its battery-free AGIGARAM NVDIMM
combines standard DRAM with NAND flash and an ultracapacitor power
source. When a system operates normally, AGIGARAM provides all the
capabilities of high speed DRAM. But in the event of power loss, the
ultracapacitor provides a burst of electricity used to write main
memory contents to the NAND flash chip, where it can be held
virtually indefinitely, with the AGIGARAM NVDIMM restoring data from
NAND flash to DRAM upon system recovery.
McObject tested eXtremeDB Financial Edition using AgigA Tech's 4 GB
AGIGARAM DDR3 NVDIMM for main memory storage, on an Intel Oak Creek
Canyon reference motherboard equipped with a Intel Pentium Dual Core
CPU 1407 @ 2.8 GHz processor, as well as 8 GB of conventional memory.
The benchmark application measured speed in separate tests of
database inserts, updates, deletes, index searches and table
traversals. In each test, the AGIGARAM NVDIMM delivered speed
comparable to the results obtained using conventional memory.
To test response to failure, the system was re-booted during
execution. Upon re-start, the test application launched
automatically, accessed the database in its pre-failure state (upon
recovery, the AGIGARAM NVDIMM had loaded it from flash into its
DRAM), checked for database consistency and resumed operation.
Test application code enabling database recovery leveraged an
eXtremeDB feature that supports the IMDS's use with battery-backed
RAM. It enables a process to re-connect to an NVRAM-hosted eXtremeDB
Financial Edition database, initiate any needed cleanup, and resume
normal operation after a system reboots. An application's recovery
algorithm assumes that the memory block of the database memory device
assigned as MCO_MEMORY_ASSIGN_DATABASE can be re-used after a crash
or power failure by re-opening it as an existing database.
"The idea that there must be a tradeoff between performance and
persistence/durability has become so ingrained in the database field
that it is rarely questioned. McObject's test of the eXtremeDB
Financial Edition in-memory database system with AgigA Tech's
AGIGARAM NVDIMM shows that mission critical applications needn't
accept latency as the price for recoverability. Developers working in
a variety of capital markets application categories will view this as
a breakthrough, and we look forward to our customers enjoying the
benefits of the joint eXtremeDB Financial Edition/AGIGARAM NVDIMM
solution," Steve Graves, McObject CEO, said.
"An in-memory database system is perhaps the ideal application to
take advantage of the features of NVDIMMs," said Ron Sartore, CEO of
AgigA Tech. "Our AGIGARAM NVDIMMs provide the speed and endurance of
DRAM with the persistence of flash. McObject's impressive benchmark
reveals the value of this combination."
About AgigA Tech, Inc.
Headquartered in San Diego, California, AgigA Tech is a leading
developer of high-speed, high-density, battery-free non-volatile
memory solutions. The company's flagship AGIGARAM(R) product family
represents a new class of non-volatile memory created to address the
fundamental need for higher-density, higher-performance memory in
enterprise-class applications. AGIGARAM integrates NAND Flash, DRAM
and an ultracapacitor power source into an innovative,
highly-reliable non-volatile memory subsystem that can deliver
unlimited read/write performance at the fastest DRAM speeds, while
also safely backing up all data when power is interrupted. AgigA Tech
is a subsidiary of Cypress Semiconductor Corp. The company's products
are available worldwide through the Cypress sales force and its
distributor partners. More information on the company is available at
Founded by embedded database and real-time systems experts, McObject
offers proven data management technology that makes capital markets
technology faster, more reliable and more cost-effective to develop
and maintain. McObject counts among its customers industry leaders
such as TradeStation, NSE.IT, SunGard Kingstar, Transaction Network
Services, Dalian Commodity Exchange, Financial Technologies of India
Ltd. (FTIL), BAE Systems, Northrop Grumman, Siemens, Philips, EADS,
Spirent Communications, F5 Networks, Motorola and Boeing. McObject,
based in Issaquah, WA, is committed to providing innovative
technology and first-rate services to customers and partners. The
company can be reached at +1-425-888-8505, or visit
McObject and eXtremeDB are registered trademarks of McObject LLC.
AGIGA and AGIGARAM are registered trademarks of AgigA Tech, Inc.
Cypress and the Cypress logo are registered trademarks of Cypress
Semiconductor Corp. All other company or product names mentioned
herein are trademarks or registered trademarks of their respective
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