Anvil's Storage Utilities:
Anvil's Storage Utilities is another new benchmark designed with SSDs in mind. The standard storage benchmark measures a drive's performance by testing its transfer speeds, access times and IOPS.
Samsung SSD 850 EVO mSATA 120GB
Samsung SSD 850 EVO mSATA 120GB (RAPID Mode)
Iometer:
Lastly, I ran a series of tests using Iometer. This tool can be configured to benchmark a number of things. In this case, I used it to measure the 850 EVO mSATA's read and write speeds and the number of operations per second. The tests were run using random bytes and a queue depth of 3.
The EVO 850 mSATA's performance was hit and miss when tested with Iometer. While the drive was able to read at a respectable 524.59 MB/s, its sequential write speed averaged out at only 172.64 MB/s. With RAPID mode enabled, its read and write speeds jumped to 591.02 MB/s and 311.83 MB/s, respectively.
The 850 EVO mSATA's random read and write performance was a mixed bag as well. While the drive was able to read at an impressive 159.26 MB/s, its random write speed averaged out at only 166.48 MB/s.
According to Samsung, the 120GB 850 EVO mSATA is capable of 95,000 IOPS when reading and 88,000 IOPS when writing 4K blocks. In our tests, the drive reached 40,770 random read IOPS and 42,619 random write IOPS. Increasing the queue depth had little impact on the 850 EVO mSATA's random write performance. However, with the queue depth set to 32, the drive was able to reach 94,593 random read IOPS.
