DiskSpd vs Quickbench

DiskSpd has no write-up on Specifiction yet; its figures are above.

Quickbench is a free Bash script for measuring basic performance on Linux-based hosts, including virtual machines. It reports CPU configuration and runs busy-loop benchmarks at different parallel job counts, returning loop rates. Memory checks report Linux-allocatable memory and run a simple bandwidth test that may reflect L1 or L2 cache performance. Storage checks use parallel dd transfers with 4k and 1M blocks, reporting bandwidth and I/O rates. They run on the filesystem in the current working directory; to measure another device, mount its filesystem there and run Quickbench from that location. The script is designed for minimal Linux servers and needs no specific dependencies. 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 cautions that values below 10 seconds may be unreliable. CPU loop measurements are not calibrated, so comparisons call for matching Quickbench, kernel, Bash, and dd versions. The project describes storage testing as non-thorough and says it cannot measure I/O completion latency. It is licensed under GPL-3.0.