jop/README.md
2023-08-05 17:05:41 +02:00

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**JOP**
=>'java top'
* Simple commandline utility that parses the output of java verbose gc and plots it in a graph
* Can be used for tailing the file (showing the results in realtime), or on historic files
* Written in rust. Executable size (release) 2Mb.
* Sample usage:
```bash
java -verbose:gc -cp src Filler >outfile
```
and:
```bash
jop outfile
```
or:
```bash
cargo run outfile
```
* tested on jdk20/G1 collector
* depends on tail command, so works best on linux/unix/macos
![how it looks](screencast.gif)
[GREEN] heap size before garbage collection
[RED] heapsize after garbage collection