Name
Title | ||
|---|---|---|
Analysis Of Scm-Based Ssd Performance In Consideration Of Scm Access Unit Size, Write/Read Latencies And Application Request Size |
Abstract | ||
|---|---|---|
NAND flash memories used in solid-state drives (SSDs) will be replaced with storage-class memories (SCMs), which are comparable with NAND flash in their cost, and with DRAM in their speed. This paper describes the performance difference of the SCM/NAND flash hybrid SSD and the SCM-based SSD with between sector-unit read (512 Byte) and page-unit read (16 KByte, NAND flash page-size) using synthetic and real workload. Also, effect of the SCM read-unit size on SSD performance are analyzed. When SCM write/read latency is 0.1 us, performance difference of the SCM/NAND flash hybrid SSD with between page- and sector-unit read is about 1% and 6% at most for the write-intensive and read-intensive workloads, respectively. However, performance of the SCM-based SSD is significantly improved when sector-unit read is used because extra read latency does not occur. Especially, the SCM-based SSD IOPS is improved by 131% for proj_3 (read-hot-random), because its read request size is small but its read request ratio is large. This paper also shows IOPS of SCM-based SSD write/read with sector-unit read can be predicted by the average write/read request size of workloads. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.1587/transele.E101.C.253 | IEICE TRANSACTIONS ON ELECTRONICS |
Keywords | Field | DocType |
solid-state drive, storage-class memory, NAND flash memory | Nand flash memory,Electronic engineering,Storage class memory,Solid-state drive,Engineering,Computer hardware | Journal |
Volume | Issue | ISSN |
E101C | 4 | 1745-1353 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hirofumi Takishita | 1 | 0 | 0.68 |
| Yutaka Adachi | 2 | 0 | 0.68 |
| chihiro matsui | 3 | 9 | 5.28 |
| Ken Takecuhi | 4 | 0 | 0.34 |