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    IOzone Alternatives

    IOzone is described as 'filesystem benchmark tool. The benchmark generates and measures a variety of file operations' and is a Benchmark Tool in the OS & Utilities category. There are eight alternatives to IOzone for Windows, Linux, Mac, BSD and Self-Hosted solutions. The best alternative is fio, which is both free and Open Source. Other great apps like IOzone are Blackmagic Disk Speed Test (Free), Vdbench (Free, Open Source), Iometer (Free, Open Source) and DiskMark (Paid).

    This page was last updated Oct 28, 2021

    1. fio is an I/O tool meant for both for benchmark and stress/hardware verification. It has support for many different types of I/O engines, I/O priorities (on newer Linux kernels), rate limited I/O, forked or threaded jobs and much more.
    2. Disk Speed Test is an easy to use tool to quickly measure and certify your disk performance for working with high quality video! Simply click the start button and Disk Speed Test will write test your disk using large blocks of data, and then display the result.
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      • FreeOpen Source
      • Windows
      • Linux
      Vdbench is a disk and tape I/O workload generator for verifying data integrity and measuring performance of direct attached and network connected storage on Windows, Solaris, Linux, AIX, OS/X and HP/UX.
      No screenshots yet
    3. As the Iometer Users Guide says, Iometer is an I/O subsystem measurement and characterization tool for single and clustered systems.


      Last activity from 2014, see

    4. Test the performance of your flash (pen/usb), solid state, hard disk drives in just 60 seconds. DiskMark performs real world speed tests and shows: + Sequential read/write speeds which is the performance you see when copying large files.

    5. CCSIO Benchmark measures maximum sequential read/write speed that is realistically achievable for a given file system location, including local drives, remote network shares, virtual/pseudo devices such as RAM disks and encrypted file containers.
      • FreeProprietary
      • Windows
      SQLIO is a tool provided by Microsoft which can also be used to determine the I/O capacity of a given configuration.


      Replaced by Microsoft's open source utility Diskspd. See Diskspd

      No screenshots yet
      • Windows
      • Self-Hosted
      2U load generation appliance, also runs under a VM, A leading commercial performance validation product for networked storage infrastructure.
      No screenshots yet
    Showing 8 of 8 alternatives