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RANDOM PERFORMANCE BENCHMARKS
4K RANDOM WRITE/READ
WE precondition our enterprise SSDs using 100% random 4K writes at QD256 for two drive fills. Performance data is recorded every second. We track this data to monitor the enterprise SSDs transition to steady-state and to verify that steady-state conditions are achieved before initiating queue depth testing. Steady-state is established after a full drive fill and the average steady-state 4K random write performance is approximately 511K IOPS.
Listed specifications for the Memblaze PBlaze 7A40 Gen 5 SSD is 500K IOPS for sustained random write 4K IOPS during steady-state operation, whereas our results demonstrated an average of 511K throughout QD4 to QD4096.
Listed specifications for the Memblaze PBlaze 7A40 Gen 5 SSD is 3300K IOPS for sustained random read 4K IOPS during steady-state operation and our testing met that rating. We would like to have seen that performance level off a bit sooner as one might typically see it leveling off at the beginning of QD512 rather than what we see above with the steady climb.
4K 70/30
The PBlaze 7A40 demonstrates a rather impressive performance curve for large datasets involving read-intensive mixed workloads.
4K 50/50
The Memblaze 7A40 pulled off an average performance result of 782K IOPS through QD128-QD4096, which is very impressive for any 1-DWPD SSD.
