The metrics tests in this directory are designed to be used to assess storage IO.
The blogbench script is based on the blogbench program which is designed to emulate a busy blog server with a number of concurrent
threads performing a mixture of reads, writes and rewrites.
The blogbench test can be run by hand, for example:
$ cd metrics
$ bash storage/blogbench.sh
The fio test utilizes the fio tool, configured to perform measurements upon a single test file.
The test spawns 8 jobs that exercise the I/O types sequential read, random read, sequential write and random write, while collecting
data using a block size of 4 Kb, an I/O depth of 2, and uses the libaio engine on a workload with a size of 10 gigabytes for a period of
10 seconds on each I/O type.
The results show the average bandwidth and average number of IOPS per I/O type in JSON format.
The fio test can be run by hand, for example:
$ cd metrics
$ bash storage/fio_test.sh