Add benchmarks for GlobalRoles and FolderRoles

[AbhyudayaSharma]

Adds a benchmark to compare the performance of hasPermission() checks for global roles with those from the Role Strategy Plugin.

The benchmark emulates https://github.com/jenkinsci/role-strategy-plugin/blob/master/src/test/java/jmh/benchmarks/RoleMapBenchmark.java

[AbhyudayaSharma]

For 500 global Roles, the average time for one hasPermission() is 0.130 microseconds (on my machine). The latest build of Role Strategy Plugin has an average of 121.4 microseconds for one hasPermission() call:

            "scorePercentiles" : {
                "0.0" : 120.53523934042522,
                "50.0" : 121.5185190145392,
                "90.0" : 122.6657498752239,
                "95.0" : 122.7264551434821,
                "99.0" : 122.7264551434821,
                "99.9" : 122.7264551434821,
                "99.99" : 122.7264551434821,
                "99.999" : 122.7264551434821,
                "99.9999" : 122.7264551434821,
                "100.0" : 122.7264551434821
            },
            "scoreUnit" : "us/op",

[AbhyudayaSharma]

The pull request build verifies the observations on my machine:

            "scorePercentiles" : {
                "0.0" : 0.157471799470619,
                "50.0" : 0.1620496203417448,
                "90.0" : 0.1688005135869144,
                "95.0" : 0.16915351346210927,
                "99.0" : 0.16915351346210927,
                "99.9" : 0.16915351346210927,
                "99.99" : 0.16915351346210927,
                "99.999" : 0.16915351346210927,
                "99.9999" : 0.16915351346210927,
                "100.0" : 0.16915351346210927
            },
            "scoreUnit" : "us/op",

Therefore this implementation is 933.84 x faster for 500 roles (would be even faster for a larger number of global roles) than the global roles in Role Strategy plugin🎉

[AbhyudayaSharma]

The added benchmark for Folder Roles follows from the configuration @Straber gave us and which was implemented for https://github.com/jenkinsci/role-strategy-plugin/blob/master/src/test/java/jmh/benchmarks/FolderAccessBenchmark.java . Benchmarks on Role Strategy c2bef11 takes an average time of ~77 us. On my machine, the task completes in 4.3 us. So the folder roles are faster too...

[oleg-nenashev]

👍

[AbhyudayaSharma]

Attaching results for future reference because the artifacts may be discarded by the Jenkins CI

• results.zip

[oleg-nenashev]

🚢 🇮🇹 ? :)