Random Read & Write Patterns Now we will see the dependence
between the controllers’ performance in random read and write
modes on the size of the processed data block. We will discuss
the results in two ways. For small-size data chunks we will draw
graphs showing the dependence of the amount of operations per
second on the data chunk size. For large chunks we will compare
performance depending on data-transfer rate in megabytes per
second. This approach helps us evaluate the disk subsystem’s
performance in two typical scenarios: working with small data
chunks is typical for databases. The amount of operations per
second is more important than sheer speed then. Working with
large data blocks is nearly the same as working with small
files, and the traditional measurement of speed in megabytes per
second becomes more relevant. Let’s start with reading. -
IOMeter: Random Read, operations per second - IOMeter: Random
Read, MBps - IOMeter: Random Write, operations per second -
IOMeter: Random Write, MBps There are