How to use JMX plugin

[stefanodoni]

Hi,

I see that as part of the new release, it is possible to gather and report JMX metrics within the benchmark.

This can be very handy, however, I couldn't find any example about how to use them. I tried using the various command line options with no luck.

Could you kindly provide a working example?

Thank you!

[vhotspur]

Hello,

if you download the main JAR and the JMX plugin JAR from the 0.11.0 release, following command should work.

java \
    -jar renaissance-gpl-0.11.0.jar \
    --plugin 'plugin-jmxtimers-assembly-0.0.2.jar!org.renaissance.plugins.jmxtimers.Main' \
    --json data.json \
    --csv data.csv \
    scrabble

Then the CSV would contain something like this:

benchmark,duration_ns,jmx_timers_compilation_time_ms,jmx_timers_compilation_total_ms,uptime_ns,vm_start_unix_ms
scrabble,1585955295,2167,3430,1702712827,1614863148161
scrabble,952939770,8,3708,3456193364,1614863148161
scrabble,924849168,113,4070,4533845480,1614863148161
...

and in the JSON there would be the following fragment.

{
  "benchmarks": ["scrabble"],
  "format_version": 5,
  "data": {
    "scrabble": {
      "results": [{
        "duration_ns": 1585955295,
        "jmx_timers_compilation_time_ms": 2167,
        "jmx_timers_compilation_total_ms": 3430,
        "uptime_ns": 1702712827
      }, {
        "duration_ns": 952939770,
        "jmx_timers_compilation_time_ms": 8,
        "jmx_timers_compilation_total_ms": 3708,
        "uptime_ns": 3456193364
      },
 ...

And I see that we really do not have such example in README.md. I will add it there ASAP.

[stefanodoni]

Great,

Thank you!

Is it possible to export other JMX metrics also?

On Thu, 4 Mar 2021 at 14:12, Vojtech Horky notifications@github.com wrote:

Hello,

if you download the main JAR and the JMX plugin JAR from the 0.11.0 release https://github.com/renaissance-benchmarks/renaissance/releases/tag/v0.11.0, following command should work.

java \ -jar renaissance-gpl-0.11.0.jar \ --plugin 'plugin-jmxtimers-assembly-0.0.2.jar!org.renaissance.plugins.jmxtimers.Main' \ --json data.json \ --csv data.csv \ scrabble

Then the CSV would contain something like this:

benchmark,duration_ns,jmx_timers_compilation_time_ms,jmx_timers_compilation_total_ms,uptime_ns,vm_start_unix_ms scrabble,1585955295,2167,3430,1702712827,1614863148161 scrabble,952939770,8,3708,3456193364,1614863148161 scrabble,924849168,113,4070,4533845480,1614863148161 ...

and in the JSON there would be the following fragment.

{ "benchmarks": ["scrabble"], "format_version": 5, "data": { "scrabble": { "results": [{ "duration_ns": 1585955295, "jmx_timers_compilation_time_ms": 2167, "jmx_timers_compilation_total_ms": 3430, "uptime_ns": 1702712827 }, { "duration_ns": 952939770, "jmx_timers_compilation_time_ms": 8, "jmx_timers_compilation_total_ms": 3708, "uptime_ns": 3456193364 }, ...

And I see that we really do not have such example in README.md. I will add it there ASAP.

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[vhotspur]

Is it possible to export other JMX metrics also?

At the moment, only java.lang.management.CompilationMXBean is used. But the plugin is extremely simple and it would be easy to create a different one collecting from other sources.

In which metrics would you be interested?

[stefanodoni]

Memory and CPU usage for example