Starting develop linux plugin.
Add vmstat parse logic.
Create get ss status methods.
Add disk read/write time metrics.
Add /proc/stat metrics.
It can get metric selected.
Add test for collect methods.
Add users metric.
Update comment.
Add readme file.
Output metrics information.
Fix label.
Merge github.com:mackerelio/mackerel-agent-plugins
Merge github.com:mackerelio/mackerel-agent-plugins into linux-metrics
Merge branch 'master' into linux-metrics
Fix swap metrics.
Merge github.com:mackerelio/mackerel-agent-plugins into linux-metrics
Replace old source code string.
Fix set temporary file name.
Fix count login users.