Quickbench

What Quickbench is

Quickbench is a free Bash script for measuring basic performance on Linux-based hosts. It reports CPU configuration and runs busy-loop benchmarks at different job counts. It also reports Linux-allocatable memory and runs a basic bandwidth test, which may reflect L1 or L2 cache performance. For storage, Quickbench uses parallel transfers with 4k and 1M blocks to report bandwidth and I/O rates. These tests run on the filesystem in the current working directory; to check another device, mount its filesystem there and run the script from that mount point. Quickbench is designed to run without specific dependencies on a minimal Linux server. It takes one parameter: the maximum duration in seconds for each benchmark loop. The project recommends at least 30 seconds for statistically meaningful results and warns that shorter runs may be unreliable. CPU loop results are not calibrated, so host comparisons call for matching Quickbench, kernel, Bash, and dd versions. The project describes its storage test as non-thorough and says it cannot measure I/O completion latency. Quickbench is licensed under GPL-3.0.