5. Benchmarks - page 3
We proceed with the AS SSD benchmark, which contains five synthetic as well as three practical tests. The synthetic tests determine the sequential and the random read / write performance of an SSD. These tests are carried out without using the operating system's cache. The Seq-test measures how long it takes to read and write an 1GB file. Most importantly, this sequential benchmark uses incompressible data for all of its transfers.
The 4K benchmark tests the read and write performance for random 4K blocks. The 4K-64-THRD-test corresponds to the 4K procedure except that here the read and write operations are distributed on 64 threads.
The drive produced a good 434.96 MB/s read speed, and a great 280.94 MB/s write performance. The single-threaded 4K IOPS tests showed a very high 22.86MB/s for read but a rather slow write at 44.79MB/s write, while the 64-thread 4K reads recorded a good 124.01MB/s although the write performance was significantly lower at just 82.63MB/s.
In the following test, the Octane 256GB SSD is reading and writing files, which have been partially of fully compressed. The reading graph is smooth enough showing a consistent performance at around 420 ~ 440 MB/s no matter the compression degree of the files.
Writing was also stable although there are some dips in the graph. The average writing speed was around 290 MB/s, with peaks reaching the 318 MB/s: