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Application Buffer-Cache Management for Performance: Running the World’s Largest MRTG

by Alan Milligan last modified Apr 14, 2013 08:09 AM
An operating system’s readahead and buffer-cache behaviors can significantly impact application performance; most often these better performance, but occasionally they worsen it. To avoid unintended I/O latencies, many database systems sidestep these OS features by minimizing or eliminating application file I/O. However, network traffic measurement applications are commonly built instead atop a high-performance file-based database: the Round Robin Database (RRD) Tool.