sadf コマンド

概要

sadf コマンドを利用することで、sar の結果を別フォーマットで取得できる。

手順

インストール

[vagrant@localhost ~]$ yum -y install sysstat

コマンド実行

[vagrant@localhost ~]$ sadf -T -j
{"sysstat": {
    "sysdata-version": 2.16,
    "hosts": [
        {
            "nodename": "localhost.localdomain",
            "sysname": "Linux",
            "release": "3.10.0-229.el7.x86_64",
            "machine": "x86_64",
            "number-of-cpus": 1,
            "file-date": "2019-02-27",
            "statistics": [
                {
                    "timestamp": {"date": "2019-02-27", "time": "14:30:01", "utc": 0, "interval": 599},
                    "cpu-load": [
                        {"cpu": "all", "user": 0.01, "nice": 0.00, "system": 0.03, "iowait": 0.01, "steal": 0.00, "idle": 99.96}
                    ]
                },
                {
                    "timestamp": {"date": "2019-02-27", "time": "14:40:01", "utc": 0, "interval": 599},
                    "cpu-load": [
                        {"cpu": "all", "user": 0.01, "nice": 0.00, "system": 0.04, "iowait": 0.00, "steal": 0.00, "idle": 99.96}
                    ]
                },
                {
                    "timestamp": {"date": "2019-02-27", "time": "14:50:01", "utc": 0, "interval": 599},
                    "cpu-load": [
                        {"cpu": "all", "user": 0.01, "nice": 0.00, "system": 0.03, "iowait": 0.00, "steal": 0.00, "idle": 99.96}
                    ]
                }
            ],
            "restarts": [
            ]
        }
    ]
}}

## jq と併用
[vagrant@localhost ~]$ sadf -T -j | jq -c
{"sysstat":{"sysdata-version":2.16,"hosts":[{"nodename":"localhost.localdomain","sysname":"Linux","release":"3.10.0-229.el7.x86_64","machine":"x86_64","number-of-cpus":1,"file-date":"2019-02-27","statistics":[{"timestamp":{"date":"2019-02-27","time":"14:30:01","utc":0,"interval":599},"cpu-load":[{"cpu":"all","user":0.01,"nice":0,"system":0.03,"iowait":0.01,"steal":0,"idle":99.96}]},{"timestamp":{"date":"2019-02-27","time":"14:40:01","utc":0,"interval":599},"cpu-load":[{"cpu":"all","user":0.01,"nice":0,"system":0.04,"iowait":0,"steal":0,"idle":99.96}]},{"timestamp":{"date":"2019-02-27","time":"14:50:01","utc":0,"interval":599},"cpu-load":[{"cpu":"all","user":0.01,"nice":0,"system":0.03,"iowait":0,"steal":0,"idle":99.96}]},{"timestamp":{"date":"2019-02-27","time":"15:00:01","utc":0,"interval":599},"cpu-load":[{"cpu":"all","user":0.44,"nice":0,"system":0.17,"iowait":0.02,"steal":0,"idle":99.36}]}],"restarts":[]}]}}

複数台のsar の結果を扱いやすい形で取得できて便利！

性能試験等で、複数台サーバのsar 結果をsummarize したりする際にとてもやくにたちそう。