Tools for tracking down I/O Wait

[eMPee584]

Because in practice, systems often get stuck in high iowait scenarios, it would be great to have tools for diagnosing this in sysdig. Example questions would be:

• Which application has stuck IO in flight?
• Which files and which storage blocks are being accessed?
• Stalling due to networked filesystems connection failure / starving?
• Swapping activity as special case
• correlation with pressure stall information (PSI)
• …

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[eMPee584]

Well ok the issue is stale yes, but it is not quite resolved. At the moment, to track disk I/O traffic and the source application, one has to combine multiple tools like diskgraph, nmon, iotop, fatrace, blktrace et cetera..