perf-map-agent
A java agent to generate method mappings to use with the linux `perf` tool (by jvm-profiling-tools)
rbspy
Sampling CPU profiler for Ruby (by rbspy)
| perf-map-agent | rbspy | |
|---|---|---|
| 3 | 11 | |
| 1,622 | 2,460 | |
| 1.0% | 0.2% | |
| 10.0 | 8.6 | |
| over 3 years ago | 11 days ago | |
| C | Rust | |
| GNU General Public License v3.0 only | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
perf-map-agent
Posts with mentions or reviews of perf-map-agent.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-05-16.
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Launch perf-map-agent with executable instead of pid
Is there a way to launch perf-map-agent's script perf-java-flames with a process executable instead of first launching the executable and then monitoring it's pid? By monitoring the pid, I think we are skipping some of the scripts launched at startup.
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Wazero: The zero dependency WebAssembly runtime for Go developers
I don't know enough about wasm runtimes, but for example JIT runtimes like nodejs (or JVM via perf-map-agent [0]) allow writing out debug infos via the Linux Kernel JIT-Interface [1], which debuggers and profilers can then pick up to symbolize stack traces.
[0] https://github.com/jvm-profiling-tools/perf-map-agent
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Fantastic Symbols and Where to Find Them - Part 2
The runtimes usually don't enable providing symbol mappings by default. You might need to change a configuration, run the virtual machine with a specific flag/environment variable or run an additional program to obtain these mappings. For example, JVM needs an agent to provide supplemental symbol mapping files, called perf-map-agent.
rbspy
Posts with mentions or reviews of rbspy.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-09-24.
- rbspy: A Sampling CPU Profiler for Ruby
- Flameshow: A Terminal Flamegraph Viewer
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When counting lines in Ruby randomly failed SerpApi deployments
We used rbspy to generate the flamegraph:
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EventMachine Performance Spikes
You could use rbspy to profile the EventMachine process as it's doing the workload, and try to see there where most of the time is being spent.
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Rails Resque - AWS ECS task randomly stuck
Not sure what your issue is and you got some of this info from strace, but FYI rbspy can also help profile where a running Ruby process is spending its time: https://rbspy.github.io/. I think it's a little more helpful than strace in that it should bring it back to Ruby code rather than just showing the raw syscalls.
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Optimizing your tests in 5 steps
Even the most general profiler tool will show you each statement's accumulated time. These are called statistical profilers and give you a panoramic view of what the test is doing. An example of such a profiler is rbspy:
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Fantastic Symbols and Where to Find Them - Part 2
As a result, you need to craft a specific routine for each interpreter runtime (in some cases, each version of that runtime) to obtain symbol information. Educated eyes might have already noticed, it's not an easy undertaking considering the sheer amount of interpreted languages out there. For example, a very well known Ruby profiler, rbspy, generates code for reading internal structs of the Ruby runtime for each version.
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How to use strace on threads managed by supervisor? i.e. i want to ´supervisorctl restart someService´ and strace someService.
For production, it depends on what the process is built with. There are possibly better tracing tools than just strace. For example Java has JMX, Go has pprof. There's also things like rbspy for Ruby.
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Why Is JRuby Slow?
I was a bit surprised to find out that the tool used to generate the flamegraph for Ruby (rbspy [1]) is written in Rust. lol
[1] https://github.com/rbspy/rbspy
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Profiling Rails app that uses websockets
Maybe https://github.com/rbspy/rbspy would allow you to profile the running ruby process handling web sockets?
What are some alternatives?
When comparing perf-map-agent and rbspy you can also consider the following projects:
parca-agent - eBPF based always-on profiler auto-discovering targets in Kubernetes and systemd, zero code changes or restarts needed!
flamegraph - Easy flamegraphs for Rust projects and everything else, without Perl or pipes <3
wapc-go - Golang-based WebAssembly Host Runtime for waPC-compliant modules
bcc - BCC - Tools for BPF-based Linux IO analysis, networking, monitoring, and more
karmem - Karmem is a fast binary serialization format, faster than Google Flatbuffers and optimized for TinyGo and WASM.
otto - A JavaScript interpreter in Go (golang)
stackprof - a sampling call-stack profiler for ruby 2.2+
ruby-ll
parca-demo - A collection of languages and frameworks profiled by Parca and Parca agent
flamescope - FlameScope is a visualization tool for exploring different time ranges as Flame Graphs.
lexbor - Lexbor is development of an open source HTML Renderer library. https://lexbor.com