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IOzone

IOzone

IOzone is a filesystem benchmark tool that generates and measures a wide variety of file operations. Iozone has been ported to many machines and runs under a variety of operating systems.

Iozone is useful for determining a broad filesystem analysis of a vendor's computer platform. The benchmark tests file I/O performance for the following operations: Read, write, re-read, re-write, read backwards, read strided, fread, fwrite, random read/write, pread/pwrite variants.

†IOZone3_420

Price
Free to download

Size
1.7MB
License

No license requirement

Developer
Don Capps

Website
www.iozone.org

System Requirements

Support Sites:
Documentation

Selected Reviews:
LinuxPlanet

Features include:

  • POSIX async I/O - uses the POSIX standard async I/O interfaces to accomplish this
  • Mmap() file I/O - map a file into a userís address space. Once this mapping is in place then stores to this location in memory will result in the data being stored going to a file
  • Normal file I/O
  • Single stream measurement
  • Multiple stream measurement
  • Distributed fileserver measurements (Cluster)
  • POSIX pthreads
  • Multi-process measurement
  • Excel importable output for graph generation
  • Latency plots
  • 64bit compatible source
  • Large file compatible
  • Stonewalling in throughput tests to eliminate straggler effects
  • Processor cache size configurable
  • Selectable measurements with fsync, O_SYNC
  • Builds for: AIX, BSDI, HP-UX, IRIX, FreeBSD, Linux, OpenBSD, NetBSD, OSFV3, OSFV4, OSFV5, SCO OpenServer, Solaris, MAC OS X, Windows (95/98/Me/NT/2K/XP)

Graph generated from IOZone data

Return to Benchmark Tools Home Page

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Last Updated Tuesday, March 25 2014 @ 01:57 PM EST


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