https://github.com/igr/tdv

Thread Dump Analyzer
https://github.com/igr/tdv

thread-dump

Last synced: 9 days ago
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Thread Dump Analyzer

• Host: GitHub
• URL: https://github.com/igr/tdv
• Owner: igr
• License: bsd-2-clause
• Created: 2024-03-02T19:52:07.000Z (8 months ago)
• Default Branch: main
• Last Pushed: 2024-03-27T21:28:22.000Z (7 months ago)
• Last Synced: 2024-10-14T10:48:51.210Z (23 days ago)
• Topics: thread-dump
• Language: Kotlin
• Homepage:
• Size: 1.09 MB
• Stars: 32
• Watchers: 3
• Forks: 1
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

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README

        
# Thread Dump Viewer

🚀 **Offline** Thread Dump Analyzer.

Disclaimer: While I am making this for my own use, I will _try_ to fix reported issues, as much time allows me to 🤷‍♂️.

☕️ You can still [buy me a coffee](https://www.buymeacoffee.com/oblac) :)

## Usage

Download the fat jar and run it:

```shell

java -jar tdv-X.Y.Z-all.jar [.gz]

```

The input may be a 1) raw thread dump or 2) a _gzipped_ thread dump.

The report will be generated in the `out` subfolder as HTML file.

It is a huge report, and it is not beautiful, but it is functional.

## TDV Report

The report contains the following sections:

+ [Thread Stats](doc/report.md#-threads-stats) - general stats about threads (all, application, system)

+ [Tomcat](doc/report.md#-tomcat) - Tomcat stats (if detected)

+ [Daemon Stats](doc/report.md#-daemon-stats) - stats about daemon threads

+ [GC Stats](doc/report.md#-gc-stats) - stats about garbage collection

+ [Pools](doc/report.md#-pools) - detected thread pools

+ [Blocks](doc/report.md#-blocks) - thread blocking analysis

+ [Flamegraph](doc/report.md#-flamegraph) - interactive flamegraph of stack traces

+ [Call Tree](doc/report.md#-call-tree) - call tree

+ [Exceptions](doc/report.md#-exceptions) - all captured exceptions

+ [CPU consuming threads](doc/report.md#-cpu-consuming-threads) - threads sorted by CPU consumption

+ [Threads with identical stack trace](doc/report.md#-threads-with-identical-stack-trace)

+ [List of missing locks](doc/report.md#-list-of-missing-locks) - locks that are not released

## TDV SQL Console

Yes, you can query the thread dump using SQL.

+ [SQL Console](doc/console.md)

## TODO

+ [X] Stats per thread pool

+ [ ] Deadlocks detection (as soon as I get a thread dump with a deadlock)

+ [ ] Detect complex deadlocks (e.g. A -> B -> C -> A)

+ [ ] Thread histogram per priorities

+ [ ] Latest executed methods?]