blog post on fio write zeroes performance

[Vincent Fu <vincentfu@xxxxxxxxx>]

I am pleased to share a blog post about fio write zeroes performance:

https://github.com/vincentkfu/fio-blog/wiki/How-could-write-zeroes-performance-be-worse-at-higher-queue-depths

Read about the unexpected performance issue we encountered. Feedback is 
welcome.

Vincent