fio vs Geekbench

fio is a free storage I/O workload simulator for performance testing and reproducing bugs. Its job files can define multiple threads, processes and files, with sequential, random or mixed reads and writes using buffered, direct or raw I/O. Tune block and I/O size, I/O engine, queue depth, target files or devices, and job count. Documented engines include Linux io_uring and libaio, POSIX asynchronous I/O, and synchronous read/write options. Separate engines support HTTP GET and PUT requests to WebDAV or S3 endpoints and access to Ceph RADOS and RBD. Verification options can check written data after a workload, including repeated burn-in tests. Results are available in normal text, terse, JSON and JSON+ formats, plus bandwidth and latency logs; terse output is intended for scripts, tables or graphs. fio supports Linux, Solaris, AIX, HP-UX, macOS, NetBSD, OpenBSD, Windows, FreeBSD and DragonFly. The HTTP engine supports direct I/O only at depth 1, with scaling through multiple jobs.

Geekbench is a cross-platform benchmark for measuring system performance across processors, devices, and operating systems. Its CPU benchmark covers single-core and multi-core performance in everyday application areas, while GPU Compute tests workloads including machine learning, image processing, and video editing. GPU tests support OpenCL, Metal, Vulkan, and CUDA. The free edition includes CPU Benchmark, GPU Compute Benchmark, and Online Results Management. Users can upload results to the Geekbench Browser and share them; accounts let them track results across devices. Benchmark charts aggregate results from real-user environments. Geekbench runs on Android, iOS, macOS, Windows, and Linux. Geekbench 7 Pro costs $99, paid once per user and adds command-line automation, standalone operation from portable storage or a network drive, and local result saving. Pro is licensed for commercial use. Support includes a community, email support, and a knowledge base. It is made by Primate Labs Inc., founded in 2004.