Page request: asprof

Command description

Async Profiler (asprof) is a profiler for JVM apps that attaches to processes and produces profiles. It supports a few profiling modes, output formats, thread profiling, inclusion/exclusion lists for stacks, lots of other flags.

Command details

No response

Documentation

https://github.com/async-profiler/async-profiler/tree/master/docs

Platform

Common

VCS repository link (e.g. GitHub, GitLab)

https://github.com/async-profiler/async-profiler

Additional information

Three easy starter commands from my shell history matching the core command pattern:

• Profile a process PID for N seconds: asprof -d [N] -f [filename.html] [PID]
• Profile a process by name with wall-clock timing: asprof -f [filename.html] -e wall [Process Name] (and -e alloc for memory allocs)
• Profile generating Flamegraph-compatible stacks: asprof -f [filename.stacked] [Process Name]

But there's a lot more in the docs that I haven't uncovered yet that would benefit from a tldr. Planning to write this myself after learning more.