Add Overall Status and Uptime to DashboardHome

[lucasra1]

• expand sended stats with sendAverageUptime(duration)
• Display 24h, 7d, 30d, 90d average uptime of all monitors
• Change Uptime.vue component to support displaying average uptime of all monitors

Issue #312

[louislam]

Thanks, I was not implemented this because I am worry about the performance. Especially for 90d, the sql sum up a lot of data.

So I think the performance proof should be required for this pr.

[gaby]

This PR will affect the performance of our uptime-kuma instance. We currently run the service with 2vCPU/2GB RAM, and we monitor close to 300 services/sites/servers.

[salitcao]

I want to display average uptime 90 days. So how can I do that ?

[deefdragon]

A note on the performance/implementation: it might be possible to use a sliding summation/data collection for the graphs. In that case, you only need to add/remove the values that are now/are no longer relevant. The first request will be slow as the data is collected, but after that, it will be much faster.

[louislam]

Thanks, I was not implemented this because I am worry about the performance. Especially for 90d, the sql sum up a lot of data.

So I think the performance proof should be required for this pr.

Closed due to this reason and seems staled.

[gaby]

@louislam what about modifying this PR to only do 24hr, 3 day, 7 day. Having the 30-90 day option are excessive.

Other option would be to make this Optional in the UI.

[louislam]

@louislam what about modifying this PR to only do 24hr, 3 day, 7 day. Having the 30-90 day option are excessive.

Other option would be to make this Optional in the UI.

I think the performance is still questionable, this feature should be implemented after the uptime calculation performance improved.