4K Random Write/Read
We precondition the drive for 16,000 seconds, or 4.44 hours, receiving performance data every second. We plot this data to observe the test subject's descent into steady-state. We plot both IOPS and Latency. We plot IOPS (represented by blue scatter) in thousands and Latency (represented by orange scatter) in milliseconds.
We observe steady-state for the 5100 MAX is reached at 7,000 seconds of preconditioning, where it settles in at roughly 78-79,000 IOPS. This is the first time we've witnessed an SSD almost return to FOB performance while in a steady-state. At its lowest point (54K IOPS pre-steady-state), the 5100 MAX is still delivering far better performance than we've seen from any other SATA SSD in a steady-state. The 5100 ECO hits steady-state at 11,000 seconds where it settles in at roughly 28,000 IOPS.
The 5100 MAX is cranking out almost 3X the performance of its nearest competitor. With our configuration, we are easily exceeding Micron's 4K random write factory specification for both the 5100 MAX and ECO. We are able to extract well over 79,000 IOPS with the 5100 MAX at QD8. Simply amazing performance from a SATA SSD. It's by-far the best 4K random write performance we've ever seen from any SATA-based SSD to date.
The 5100 ECO just edges out Samsung's MLC powered SM863 for second place, averaging over 28K IOPS at all queue depths. Both the 5100 MAX and 5100 ECO are outperforming factory specifications; the 5100 MAX by over 5,000 IOPS, the 5100 ECO by over 4,000 IOPS.
The SM863 and PM863 are read-centric SSDs, and they both outperform the 5100 MAX and 5100 ECO with a pure random read workload. At QD32, the 5100 MAX and 5100 ECO almost match the Samsung offerings. The 5100 MAX and 5100 ECO both outperform their predecessor, the MLC-powered M510DC, across the board. Micron's factory maximum 4K random read specification for both the 5100 MAX and 5100 ECO is 93,000 IOPS at QD32, we are exceeding that, hitting well over 95,000 IOPS with both drives.
Conclusion (TL;DR): The 5100 MAX and 5100 ECO both deliver best-in-class 4K random write performance. The 5100 MAX peaks at an astounding 79,475 IOPS 4K random write IOPS which is easily the best steady-state random write performance ever by any SATA SSD.
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