A human friendly example of the metrics output from a dropwizard app using https://github.com/codahale/metrics

gistfile1.js

{
    "jvm": {
        "memory": {
            "heap_usage": 0.01099958490852696,
            "non_heap_usage": 0.23714602195610435,
            "memory_pool_usages": {
                "Code Cache": 0.03793907165527344,
                "Eden Space": 0.026162116082160028,
                "Perm Gen": 0.19015753269195557,
                "Perm Gen [shared-ro]": 0.7345474243164063,
                "Perm Gen [shared-rw]": 0.6044743855794271,
                "Survivor Space": 0.019907745249542124,
                "Tenured Gen": 0.004491548318209905
            }
        },
        "daemon_thread_count": 9,
        "thread_count": 18,
        "uptime": 57,
        "fd_usage": 0.017578125,
        "thread-states": {
            "timed_waiting": 0.4444444444444444,
            "blocked": 0.0,
            "waiting": 0.2777777777777778,
            "runnable": 0.2777777777777778,
            "new": 0.0,
            "terminated": 0.0
        },
        "gc": {
            "duration": {
                "Copy": {
                    "type": "timer",
                    "duration": {
                        "unit": "milliseconds",
                        "min": 2.0,
                        "max": 4.0,
                        "mean": 3.0,
                        "std_dev": 1.414213562373095,
                        "median": 3.0,
                        "p75": 4.0,
                        "p95": 4.0,
                        "p98": 4.0,
                        "p99": 4.0,
                        "p999": 4.0
                    },
                    "rate": {
                        "unit": "hours",
                        "count": 2,
                        "mean": 129.81487703142264,
                        "m1": 0.0,
                        "m5": 154.61882265600002,
                        "m15": 722.3210283686609
                    }
                }
            },
            "throughput": {
                "Copy": {
                    "type": "meter",
                    "event_type": "bytes",
                    "unit": "seconds",
                    "count": 8618968,
                    "mean": 155483.53044534306,
                    "m1": 0.0,
                    "m5": 185090.92842635262,
                    "m15": 864675.2540606362
                }
            }
        }
    },
    "org.eclipse.jetty.servlet.ServletContextHandler": {
        "1xx-reponses": {
            "type": "meter",
            "event_type": "responses",
            "unit": "seconds",
            "count": 0,
            "mean": 0.0,
            "m1": 0.0,
            "m5": 0.0,
            "m15": 0.0
        },
        "2xx-reponses": {
            "type": "meter",
            "event_type": "responses",
            "unit": "seconds",
            "count": 1,
            "mean": 0.018029836200431894,
            "m1": 0.0,
            "m5": 0.0,
            "m15": 0.0
        },
        "3xx-reponses": {
            "type": "meter",
            "event_type": "responses",
            "unit": "seconds",
            "count": 0,
            "mean": 0.0,
            "m1": 0.0,
            "m5": 0.0,
            "m15": 0.0
        },
        "4xx-reponses": {
            "type": "meter",
            "event_type": "responses",
            "unit": "seconds",
            "count": 3,
            "mean": 0.05408945548766973,
            "m1": 0.0,
            "m5": 0.058367999999999996,
            "m15": 0.03185040329218107
        },
        "5xx-reponses": {
            "type": "meter",
            "event_type": "responses",
            "unit": "seconds",
            "count": 0,
            "mean": 0.0,
            "m1": 0.0,
            "m5": 0.0,
            "m15": 0.0
        },
        "active-dispatches": {
            "type": "counter",
            "count": 0
        },
        "active-requests": {
            "type": "counter",
            "count": 0
        },
        "active-suspended-requests": {
            "type": "counter",
            "count": 0
        },
        "dispatches": {
            "type": "timer",
            "duration": {
                "unit": "milliseconds",
                "min": 0.0,
                "max": 49.0,
                "mean": 13.0,
                "std_dev": 24.013884872437167,
                "median": 1.5,
                "p75": 37.25,
                "p95": 49.0,
                "p98": 49.0,
                "p99": 49.0,
                "p999": 49.0
            },
            "rate": {
                "unit": "seconds",
                "count": 4,
                "mean": 0.07210109155844037,
                "m1": 0.0,
                "m5": 0.058367999999999996,
                "m15": 0.03185040329218107
            }
        },
        "expires": {
            "type": "meter",
            "event_type": "requests",
            "unit": "seconds",
            "count": 0,
            "mean": 0.0,
            "m1": 0.0,
            "m5": 0.0,
            "m15": 0.0
        },
        "requests": {
            "type": "meter",
            "event_type": "requests",
            "unit": "seconds",
            "count": 4,
            "mean": 0.07211829632268753,
            "m1": 0.0,
            "m5": 0.058367999999999996,
            "m15": 0.03185040329218107
        },
        "resumes": {
            "type": "meter",
            "event_type": "requests",
            "unit": "seconds",
            "count": 0,
            "mean": 0.0,
            "m1": 0.0,
            "m5": 0.0,
            "m15": 0.0
        },
        "suspends": {
            "type": "meter",
            "event_type": "requests",
            "unit": "seconds",
            "count": 0,
            "mean": 0.0,
            "m1": 0.0,
            "m5": 0.0,
            "m15": 0.0
        }
    }
}