3 ms·
It looks like it's just up or down on the y-axis. RRDTool is often used to generate more complex graphs, so something this simple isn't always the most intuitiv
by jncraton 18y ago
It looks like it's just up or down on the y-axis. RRDTool is often used to generate more complex graphs, so something this simple isn't always the most intuitive.
- moe 18y agoThe monitor checks HN once per minute and records a 0 for up or a 1 for down in the database. RRDTool then averages these values out nicely so that, for example, when the graph is at weekday-resolution and you see a 50% filled bar spanning one day, then HN was down half of that day.