128KB SEQUENTIAL READ/WRITE
Sequential performance is measured similarly to the other two tests before. The drive is first secure erased to get it in a clean state. Next, we precondition the drive with a 128KB sequential write workload at QD256 until the drive is in a steady state. Finally, we cycle through QD1-256 for 5 minutes each for writes and then reads. All this is scripted to run with no breaks in between. The last hour of preconditioning, the average MB/s, and average latency for each QD is graphed below.
Just as expected, the Intel DC P4510 delivers very good sequential read and write performance. From the preconditioning data, we can see that both are able to easily meet spec and consistency is very good.
During sequential read, the Intel DC P4510 averaged 3,200MB/s after QD16. Here we see strong low QD performance from QD 1-4 as well, both are able to write at 2GB/s at QD1 alone!
The Intel DC P4510’s sequential write performance is quite impressive now that we have it compared to some of the other PCIe SSDs we have tested. Again, strong low QD performance makes the Intel DC P4510 stick out here. The 2TB model peaks at QD1 and averages above 2GB/s all the way to QD256. With as a result of 3.2GB/s that starts at QD4 and continues to QD 256 with no problem, whatsoever, the 8TB model is the second fastest writing PCIe SSD we have tested to date.