Some observations:
* "By day" should be "last 24h" and "by week" -> "last 7 days". Otherwise it sends off the wrong message, implying it's a daily/weekly average. Same applies to "by month" -> "last 30 days" and "by year" -> "last year".
* Speaking of that, it would be interesting to get a graph for hours of the day, built with the data over the last month (30 days). But I'm not sure rrdtool can do that (if that's what you're using).
* You can do percentages too! You can CDEF vars as calculations of other vars or input data. Do a total and compute the percentage out of it.
* It's interesting to note that the servers are vastly underpopulated (the Status graphs). So either we shouldn't complain about there not being servers to play on, or there's something wrong with many servers, that prevents people from using them.
* There are probably many more graphs that can be made. Off the top of my head, it would be very interesting to plot:
- type of Trem server (1.1, fusion, mgdev);
- popular mods; you'll have to help me here, I'm not familiar with them;
- what maps are being played the most;
- who is winning (aliens/humans);
We should filter the above to only take under account servers with non-zero population; doesn't mean much if there are heaps of servers with certain configuration if nobody's using them; point being to identify popular maps/mods/tremdeds. Of course, the way rrdtool works, you'd have to either maintain a complete list of possible tremded's/maps/mods, or focus on a predefined list.
To other server owners: if you have a popular server, it runs on Linux, you can extract stats from it and you can figure out how to run rrdtool to produce graphs, do so. There are some very interesting things you could tell the users; all the above plus other stuff specific to the mods you're running. The /mystats data alone, gathered from all players, would make for some very interesting graphs; what's the kill/feed ratio for your server? What's the time spent near base ("camping")? Time spent building vs not building? etc. etc. Or, if your server runs bots (arena/invasion/wrath) you could plot people vs bots stats.
PS: Here's
a script that has helped me make rrdtool easier to use.