8k Random Read/Write
Server workloads rely heavily upon 8k performance, and we include this as a standard with each evaluation. Many of our server emulations also test 8k performance with various mixed read/write workloads.
The average 8k random read speed of the HGST Ultrastar SSD800MH is 91,661 IOPS at 256 OIO; the Toshiba PX02SS measures an outstanding 100,277 IOPS at 256 OIO to take the lead, while the SSD800MM offers up 91,622 IOPS.
All three SSDs exhibit a tight latency range during the 8k random read test, but the Toshiba PX02SS provides the lowest latency.
The SSD800MH easily leads with an average of 52,180 IOPS; the PX02SS experiences significant variability while managing an average of 29,714 IOPS; and the SSD800MM sports a consistent average of 32,878 IOPS at 256 OIO.
The Toshiba SSD experiences significant latency variability.
The PX02SS also has an affinity for 8k workloads, but the SSD800MH also excels at this workload. The PX02SS wins with lighter write workloads, from 0-30 percent, but falls to the incredible consistency of the SSD800MH from 40-100 percent as the write workload intensifies.
Power consumption for the SSD800MH averages 8.48 watts, the PX02SS averages 5.84 watts during the measurement window, and the SSD800MM requires 7.60 watts.
The SSD800MH leads this chart with 6,036 IOPS-per-Watt; the PX02SS's variability shows up in the efficiency results, but it still averages 5,103 IOPS-per-Watt, and the SSD800MM measures 4,159 IOPS-per-Watt.
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