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Japanese researchers found a way to boost SSD performance by 300%

by on26 May 2014 1473 times

A team of Japanese researchers from Chuo University in Tokyo said they have solved one of the biggest problems that still limits the development of solid-state drives. Specifically, with currently available SSD technology it is not possible to directly write the data to the NAND chips over other data. Instead, data is written to the free part of the SSD drive, while old data is formatted. This way of operation eventually leads to fragmentation of data and reduces the performance and life-cycle of SSD drive.

To solve this problem, Japanese researchers have written middleware software that establishes control over the way in which data is recorded and stored in SSDs. The software uses the functionality of the „logical block address scrambler“' which prevents writing of data to new page of the disk unless it is absolutely necessary. Instead, data is placed in a fragmented page in the block that will be erased in the next move. This will lead to less copying of data and thus higher performance of SSDs. When testing drives that have used new technology data were recorded 55% less often than with the devices that use old technology, also consuming 60 % less energy.

For devices with the new technology, there was an increase in performance of almost 300 %, the data transfer rate was 1.5 GB/s, for comparison current models record transfer rates of 500 MB/s. Since this is a purely software implementation, the use of this technology new devices will not be required, but manufacturers can take advantage of the old ones with a simple firmware upgrade.

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Last modified on 26 May 2014
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