How can I test to see if my environment is fast enough for etcd

Issue

• There is currently an article that is being used by our customer that provides a fio command to test the throughput efficiency of their environment.
• This is causing issues in rare cases as the information portrayed is not 100% communicated.
  The article is:
  [Using Fio to Tell Whether Your Storage is Fast Enough for Etcd] (https://www.ibm.com/cloud/blog/using-fio-to-tell-whether-your-storage-is-fast-enough-for-etcd)
• In this article the command given is shown below.

# fio --rw=write --ioengine=sync --fdatasync=1 --directory=test-data --size=22m --bs=2300 --name=mytest

• The article then tells the customer to examine the fdatasync 99th percentile and notes that anything above 10,000 us (10 milliseconds) may not be fast enough for etcd.
• This is causing issues cause in rare cases as is this information is not correct.