128k Sequential Read/Write
128k sequential speed reflects the maximum sequential throughput of the SSD using a realistic file size encountered in an enterprise scenario. The Toshiba PX02SS goes toe-to-toe with the HGST SSD800MM in sequential read speed as both deliver a blistering average of 1,040 and 1,056 MiB/s, respectively. The PX02SM is within its expectations at 812 MiB/s.
Latency testing reveals very little latency variation with sequential read activity for all three SSDs.
The HGST absolutely dominates the sequential write testing with a blistering average of 702 MiB/s. The two Toshiba models score slightly over their rated speed at 417 MiB/s.
The faster speed of the HGST SSD800MM leads to significantly lower latency than that of the competing Toshiba models.
The percentage testing gives us another deeper perspective of the performance of the Toshiba drives. While the HGST provides excellent performance across the board, it actually loses more than half of the chart. In mixed read/write environments, we witness the PX02SS having a distinct advantage on the more read-centric mixtures until we hit a 70 percent mix. The HGST drops tremendously from 0 percent read (100 percent write) to the 10 percent mixture, while the Toshiba has a more graceful descent across the chart. This gives the Toshiba a win in seven of the categories, while the HGST mops up the remaining four.
The PX02SS averages 6.08 watts, and the HGST requires 8.68 watts for the sequential write workload.
The PX02SS averages 88 MiB/s-per-Watt, while the HGST provides 80 MiB/s-per-Watt.
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- Page 1 [Introduction]
- Page 2 [Toshiba PX02SS Internals and Specifications]
- Page 3 [Test System and Methodology]
- Page 4 [4k Random Read/Write]
- Page 5 [8k Random Read/Write]
- Page 6 [128k Sequential Read/Write]
- Page 7 [Database/OLTP and File Server]
- Page 8 [Email Server]
- Page 9 [Final Thoughts]
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