Input/output logging and analysis

[lars-t-hansen]

A metabug for getting I/O data from Sonar into Jobanalyzer. So far we've been concerned with computation: CPU, GPU, memory. But I/O activity, I/O waits, etc are of great interest.

• [ ] #18
• [ ] #58
• [ ] https://github.com/NordicHPC/sonar/issues/67
• [ ] https://github.com/NordicHPC/sonar/issues/135
• [ ] I/O wait times
• [ ] I/O volume
• [ ] I/O can be disk or network (primarily)

One thing is adding this to Sonar, which is itself a project, given the various technologies out there. Another is how to make sense of it in Jobanalyzer.

cc @Sabryr

[lars-t-hansen]

Even if we can only get some of the data on the node level (and not per job), it may be of interest.