Is it possible to monitor every I/O operation size?

Question

I know we can get something like "average bytes/read" or "average bytes/write" from many performance monitoring tools. But if I want to measure what I/O size, an application operates most, I think an average number doesn't meet the needs. Because the application may operate with extremely small sizes and extremely big sizes and the average size can not show the exact I/O size, which is most operated.

So I wonder if it is possible to get every I/O size that operated by an application?

Answer 1

Process Monitor.

https://learn.microsoft.com/en-us/sysinternals/downloads/procmon

Set a filter for the program name. On the Tools menu there is an option for File Summary. To analyze further you'll probably have to save the trace as a CSV and play with the data using Excel.