straceD | runs strace on processes that spend time in iowait

straceD is a Python library. straceD has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. However straceD build file is not available. You can download it from GitHub.

Intended as an automatic 'what programs are making my drives churn so hard, and why?'. Periodically checks for processes that are in D state (uninterruptable sleep, typically "waiting on IO" and then usually "waiting on disk"), straces them if they keep doing that, stops stracing and gives a summary when they stop doing so OR you press Ctrl-C (also helps summaries on processes that rarely or never exit, like databases and other daemons). By default you get a summary (strace's -c argument) when it stops for any of those reasons. If you want a more realtime (and much messier) feed, add -C to get all the syscalls of the process. You may then also want to use -e to have strace filter them.