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by linsomniac 1894 days ago
As someone who has set up a number of "simple" visualizing systems using the exact toolpath you mention (cron, shell scripts, rrdtool), I can say with some authority that getting them right was never simple.

And the load of dozens to hundreds of data points in rrd is shockingly large. Our infrastructure utilization dropped by 30% when I switched from a Graphite/collectd setup to gathering MORE data more frequently with telegraf and influxdb.