ruby-prof
rbspy
| ruby-prof | rbspy | |
|---|---|---|
| 1 | 11 | |
| 1,988 | 2,460 | |
| 0.1% | 0.2% | |
| 7.7 | 8.6 | |
| 4 months ago | 8 days ago | |
| Ruby | Rust | |
| BSD 2-clause "Simplified" License | MIT License |
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ruby-prof
rbspy
- 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?
benchmark-ips - Provides iteration per second benchmarking for Ruby
flamegraph - Easy flamegraphs for Rust projects and everything else, without Perl or pipes <3
rack-mini-profiler - Profiler for your development and production Ruby rack apps.
bcc - BCC - Tools for BPF-based Linux IO analysis, networking, monitoring, and more
perftools.rb - gperftools for ruby code
parca-agent - eBPF based always-on profiler auto-discovering targets in Kubernetes and systemd, zero code changes or restarts needed!
bullet - help to kill N+1 queries and unused eager loading
perf-map-agent - A java agent to generate method mappings to use with the linux `perf` tool
Rbkit - A new profiler for Ruby. With a GUI
stackprof - a sampling call-stack profiler for ruby 2.2+
prosopite - :mag: Rails N+1 queries auto-detection with zero false positives / false negatives
ruby-ll