High Quality Content by WIKIPEDIA articles! RRDtool (acronym for round-robin database tool) aims to handle time-series data like network bandwidth, temperatures, CPU load etc. The data are stored in a round-robin database (circular buffer), thus the system storage footprint remains constant over time. It also includes tools to extract RRD data in a graphical format. Tobi Oetiker wrote RRDtool as a replacement for MRTG and licenses it as free software under the terms of the GNU General Public License (GPL).

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