Understanding SSD Performance Project

The Solid State Storage Performance Test Specification (SSS PTS) defines a suite of tests and test methodologies necessary to enable comparative testing of individual Enterprise and Client SSD performance.  The Understanding SSD Performance project is intended to educate users about how to use the SSS PTS to make intelligent decisions about SSD performance.

This webpage contains a summary of SSS PTS-compliant performance data from actual enterprise and client SSDs, and descriptions of the individual tests within the SSS PTS.

Members of the SNIA Solid State Storage Technical Work Group – the team that created the SSS PTS – authored a companion white paper entitled “Understanding SSD Performance Using the SNIA SSS Performance Test Specification”.

Also available are a presentation, webcasts and a video about the PTS.

SSSI will also provide a public venue for SSD manufacturers to post SSS PTS-compliant test results for their products. SSSI intends to establish an industry-wide database of performance results, and encourages SSD manufacturers to contribute SSS PTS-compliant test results for their products.

The chart below contains a summary of selected SSS PTS-compliant performance data from two client SSDs (MLC-A & MLC-B) and two enterprise SSDs (SLC-A & SLC-B).  Clicking on text links within the chart will bring up an explanation of that text.  Clicking on a SSD name in the top row of the chart will bring up a more detailed summary of the performance data for that drive.  Clicking on a SSD name in the SSS PTS Reports row at the bottom of the chart will download the complete SSS PTS report for that drive.

SNIA PTS SSD Performance Test Comparison

Products Tested

MLC-A 256 GB

MLC-B 160 GB

SLC-A 100 GB

SLC-B 100 GB

Test Platform Hardware/Software

Calypso RTP 2.0
Intel 5520HC, Intel Xeon 5580
12GB ECC DDR3 RAM, LSI 6GB/s HBA

Calypso CTS 6.5
Cent OS 5.6

Tests  Run

WSAT (FOB)

IOPS (Steady State)

TP  (Steady State)

LAT  (Steady State)

 

Summary Performance - Selected

Test

Workload

MLC-A
256 GB

MLC-B
160 GB

SLC-A
100 GB

SLC-B
100 GB

WSAT

(IOs/sec)

FOB RND 4KiB W

56,896

20,364

39,092

55,677

Steady State RND 4KiB W

2,714

658

16,305

19,415

IOPS

(IOs/sec)

RND 4KiB R

29,876

38,087

93,707

46,365

RND 4KiB W

3,147

152

16,563

19,561

Throughput

(MB/sec)

SEQ 1024KiB R

417

264

514

437

SEQ 1024KiB W

267

99

157

205

Latency

(mSec)
(lower value is better)

RND 4KiB R Ave

0.20

0.19

0.16

0.18

RND 4KiB W Ave

0.35

1.00

0.09

0.08

RND 4KiB R Max

1.60

1.43

6.26

0.39

RND 4KiB W Max

51.00

288.29

32.63

444.94

SSS PTS REPORTS:

 

MLC-A Full Report

MLC-B Full Reprt 

SLC-A Full Report 

SLC-B Full Report 

 Questions or comments?  Send them to asksssi@snia.org.

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