ATTO Disk Benchmark vs DiskMark

ATTO Disk Benchmark measures read and write performance and I/O throughput for drives and storage systems. It can test hard drives, SSDs, RAID and storage controllers, and host adapters. Storage reached over a network or block connection can be measured through a file system. Tests may run continuously or capture snapshots, with adjustable transfer sizes and queue depths; multiple disks can be tested in one run. ATTO describes its file-system performance tests as non-destructive. Custom test profiles and command-line automation are supported, and results can be saved in BMK, TST or LOG formats or sent to print. Windows and macOS versions are listed: the Windows download page lists v5.00.3, while the macOS page lists v1.01. ATTO identifies drive manufacturers, IT professionals maintaining IT environments, and hardware review sites as users of its Windows benchmark. The utility is free. Technical support is available by email or contact form.

DiskMark is a Windows utility for benchmarking disks and hard drives. It lets users set advanced test options to assess drive performance and typical operating performance. The software is open source under the MIT License, and the maker says source code is available on GitHub and with version-specific releases. Its listed stable release is version 1.0.0.8, released on 2018-02-23; the release notes mention terminology changes and updated documentation. The release history runs from version 1.0.0.0 through 1.0.0.8. The latest listed release offers separate 32-bit and 64-bit Windows executables: DiskMark32.exe at 586.42 KB and DiskMark64.exe at 608.11 KB. The plan is free. The maker's site provides a Support section with a Contact link.